Mariana and her children went into a movie theater and she bought $51.25 worth of candies and pretzels. Each candy costs $4.75 and each pretzel costs $3.25. She bought a total of 13 candies and pretzels altogether. Write a system of equations that could be used to determine the number of candies and the number of pretzels that Mariana bought. Define the variables that you use to write the system.


pls help i have trouble figuring out what equations im suppose to use to solve.

Answers

Answer 1

Answer: 51.25 = 4.75c + 3.25p

Step-by-step explanation:

1. Since she spent $51.25, we can start our equation with this: 51.25=

2. Since she bought candies and pretzels, we can make 2 new variables, c for candies, and p for pretzels.

3. Since she spent $4.75 per candy, we can add this in to our equation:

51.25 = 4.75c +

4. We can do the same for the pretzels, which she spent $3.25 per piece. Adding this into our equation will leave us with: 51.25 = 4.75c + 3.25p.

5. Now we have to find out what c and p are, given the info that she bought 13 altogether.

6. If we c=6 and p=7, (because they add up to 13) we will get: 51.25!

7. Now we know what c and p are.

8. The answers would be 51.25 = 4.75c + 3.25p, or 51.25=28.5+22.75.


Related Questions

given f(x) and g(x) find the value of (gof)(5)

Answers

Answer:

Assuming that (gof)(5) means (g(f(5))):

(gof)(5) = g(f(5)) = g(3x + 7) = 5x + 2

Therefore, (gof)(5) = 5(3x + 7) + 2 = 15x + 17.

Calculate the 90% confidence interval for the proportion of voters who cast their ballot for the candidate.

Answers

We can say with 90% confidence that the true proportion of voters who cast their ballot for the candidate lies between 0.564 and 0.636. We can calculate it in the following manner.

To calculate the 90% confidence interval for the proportion of voters who cast their ballot for the candidate, we need to use the following formula:

CI = p ± z√(p(1-p)/n)

where:

CI is the confidence interval

p is the sample proportion

z is the z-score corresponding to the desired confidence level (90% in this case)

n is the sample size

Assuming we have a sample of size n and a sample proportion of p who voted for the candidate, we need to find the value of z for the 90% confidence level. The z-score can be found using a z-table or a calculator, and for a 90% confidence level, the z-score is 1.645.

Substituting the values into the formula, we get:

CI = p ± 1.645√(p(1-p)/n)

For example, if the sample size is 1000 and the sample proportion is 0.6 (60% of voters voted for the candidate), then the 90% confidence interval would be:

CI = 0.6 ± 1.645√(0.6(1-0.6)/1000) = (0.564, 0.636)

Therefore, we can say with 90% confidence that the true proportion of voters who cast their ballot for the candidate lies between 0.564 and 0.636.

Learn more about proportion here brainly.com/question/7096655

#SPJ4

Full question here:

Calculate the 90% confidence interval for the proportion of voters who cast their ballot for the candidate. Number of votes: 125

Voter Response Dummy Variable

For 1

Against 0

Against 0

For 1

For 1

Against 0

Against 0

Against 0

Against 0

For 1

Against 0

Against 0

Against 0

For 1

Against 0

Against 0

For 1

Against 0

Against 0

For 1

For 1

Against 0

Against 0

For 1

For 1

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

For 1

Against 0

Against 0

For 1

Against 0

Against 0

Against 0

Against 0

For 1

Against 0

Against 0

For 1

For 1

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

For 1

Against 0

Against 0

For 1

Against 0

Against 0

For 1

For 1

For 1

Against 0

For 1

Against 0

Against 0

For 1

Against 0

For 1

Against 0

For 1

Against 0

Against 0

For 1

For 1

Against 0

Against 0

For 1

Against 0

Against 0

Against 0

Against 0

For 1

Against 0

Against 0

For 1

For 1

For 1

For 1

Against 0

For 1

Against 0

For 1

For 1

For 1

For 1

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

Against 0

For 1

Against 0

Against 0

For 1

Against 0

For 1

For 1

For 1

Against 0

Against 0

Against 0

For 1

For 1

Against 0

Against 0

For 1

Against 0

For 1

Against 0

find a parameterization of each of the following surfaces, in terms of sines, cosines, and hyperbolic sines and cosines

Answers

Parameterizing a surface over a rectangle Parameterizing the surface z = x²+2y² over the rectangular region R defined by -3 ≤ x ≤ 3, −1 ≤ y ≤ 1 are falls under the range of R.

Let's start by expressing x and y as functions of u and v. Since x varies between -3 and 3 over R, we can use the following parameterization for x:

x = u

where u varies between -3 and 3. Similarly, since y varies between -1 and 1 over R, we can use the following parameterization for y:

y = v

where v varies between -1 and 1.

Next, we can use these parameterizations for x and y to express z as a function of u and v. Substituting x = u and y = v into the equation z = x² + 2y², we get:

z = u² + 2v²

So, the parameterization of the surface z = x² + 2y² over the rectangular region R is given by:

x = u, y = v, z = u² + 2v²

where -3 ≤ u ≤ 3 and -1 ≤ v ≤ 1.

The parameterization allows us to study various properties of the surface z = x² + 2y² over the rectangular region R.

To know more about surface area here

https://brainly.com/question/27784309

#SPJ4

Complete Question:

Parameterizing a surface over a rectangle Parameterizing the surface z = x²+2y² over the rectangular region R defined by -3 ≤ x ≤ 3, −1 ≤ y ≤ 1.

ellas normal rate of pay is $10.40 an hour.

How much is she paid for working 5 hours overtime one Saturday at time-and-a-half?

Answers

Answer:

52

Step-by-step explanation:

10.40 TIMES 3

The bar graph in the following graphic represents fictional net exports in billions of dollars for five countries.
Net exports are obtained by subtracting total imports from total exports; a negative net export means the
country imported more goods than it exported.
Net Exports (Billions of dollars)
United States
Denmark
China
Germany
Spain
-150 -100
-50
Net Exports (Billions of dollars)
What is the sum of net exports for Germany and China ?
a.
-80 billion dollars
b. 180 billion dollars
0 50 100 150
C. 90 billion dollars
d. 150 billion dollars

Answers

[tex]80[/tex] billion dollars' worth of net exports were made by China and Germany. The first claim is accurate.

What do the terms "export" and "import" mean?

Export is the process of supplying goods and services to some other nation. Contrarily, importing is the act of acquiring goods from outside and transferring them into one's own nation.

What does GDP export mean?

The domestic product (GDP) is a measure of all the products and services generated in the United States; thus, changes in exports change significantly in the demand for goods and services made in the United States abroad.

The total of China's and Germany's net exports would be:

[tex]50[/tex] billion + [tex]30[/tex] billion [tex]= 80[/tex] billion

As a result, Germany & China's consolidated net exports amounted to [tex]80[/tex] billion u.s. dollars, reflecting answer option (a).

To know more about exports visit:

https://brainly.com/question/20375046

#SPJ1

Please help!!!!!!!!!!!!!!

Answers

Step-by-step explanation:

try this option (see the attachment), answers are marked with red colour.

Roberto must make his costume for the school play. He needs a piece of fabric that is 2 2/3 yards long and 1 1/2 yard wide. What is the area of the piece of fabric Roberto needs?

Answers

Roberto needs 4 square yards of fabric to make his costume.

What is improper fraction?

A fraction that has the numerator higher than or equal to the denominator is said to be inappropriate. For instance, the fraction 7/3 is incorrect since 7 is bigger than 3. Mixed numbers, which combine a whole number and a correct fraction, can be created from improper fractions.

Given that, piece of fabric that is 2 2/3 yards long and 1 1/2 yard wide.

Convert the length from a mixed number to an improper fraction:

2 2/3 = (2 x 3 + 2)/3 = 8/3

1 1/2 = 3/2

The area of the rectangle is:

Area = Length x Width

Substituting the values we have:

Area = (8/3) x (3/2) = 4

Hence, Roberto needs 4 square yards of fabric to make his costume.

Learn more about improper fraction here:

https://brainly.com/question/29292275

#SPJ1

Mark is going to an awards dinner and wants to dress appropriately. He is running behind schedule and asks his little brother to randomly select an outfit for him.
Mark has one blue dress shirt, one white dress shirt, one black dress shirt, one pair of black slacks, one pair of grey slacks, and one red tie. All six of his possible outfits are listed below.
Let
A
AA be the event that Mark's little brother selects an outfit with a white shirt and grey slacks and
B
BB be the event that he selects an outfit with a black shirt.
What is
P
(
A
or
B
)
P(A or B)P, left parenthesis, A, start text, space, o, r, space, end text, B, right parenthesis, the probability that Mark's little brother selects an outfit with a white shirt and grey slacks or an outfit with a black shirt?

Answers

There are six possible outfits, and we want to find the probability that Mark's little brother selects an outfit with a white shirt and grey slacks or an outfit with a black shirt. We can use the addition rule of probability:

P(A or B) = P(A) + P(B) - P(A and B)

where P(A) is the probability of selecting an outfit with a white shirt and grey slacks, P(B) is the probability of selecting an outfit with a black shirt, and P(A and B) is the probability of selecting an outfit with both a white shirt and grey slacks, and a black shirt.

From the six possible outfits, there is one outfit with a white shirt and grey slacks, and one outfit with a black shirt, so:

P(A) = 1/6
P(B) = 1/6

There is no outfit that satisfies both events A and B, so:

P(A and B) = 0

Therefore:

P(A or B) = P(A) + P(B) - P(A and B) = 1/6 + 1/6 - 0 = 1/3

So the probability that Mark's little brother selects an outfit with a white shirt and grey slacks or an outfit with a black shirt is 1/3.

In △ △ ABC, CJ = 18. If CG = BG, what is KJ? Triangle A B C is divided by 4 segments. A H is the height. C J extends from C to side A B. B I extends from B to side A C. H I extends from the height on B C to I on A C. C J and B I intersect at point K. A J and B J are congruent. A I and C I are congruent.

Answers

Solving for CI in terms of the given lengths, we get: [tex]Cl=\frac{\sqrt{BG^{2} -IM^{2} } }{\sqrt{2} }[/tex]

Substituting this expression for CI and the given value for CG into the expression for BI, we get:  [tex]BI=CG-\frac{\sqrt{BG^{2} -IM^{2} } }{\sqrt{2} }[/tex].

What is triangle?

A triangle is a three-sided polygon, which is a closed two-dimensional shape with straight sides. In a triangle, the three sides connect three vertices, or corners, and the angles formed by these sides are called the interior angles of the triangle. The sum of the interior angles of a triangle is always 180 degrees. Triangles can be classified by their side lengths and angle measurements. For example, an equilateral triangle has three sides of equal length, and all of its angles are 60 degrees; an isosceles triangle has two sides of equal length, and its base angles are also equal; a scalene triangle has three sides of different lengths, and all of its angles are also different. Triangles are a fundamental shape in mathematics and geometry, and they have numerous applications in fields such as architecture, engineering, physics, and more.

Given by the question.

Based on the given information, we can start by drawing a diagram of triangle ABC and the segments AH, BJ, CI, CJ, and BI as described.

Since CG = BG, we can draw the perpendicular bisector of side AC passing through point G, which will intersect side AB at its midpoint M.

Now, we can see that triangle CGB is isosceles with CG = BG, so the perpendicular bisector of side CB also passes through point G. This means that G is the circumcenter of triangle ABC, and therefore, the distance from G to any vertex of the triangle is equal to the radius of the circumcircle.

Next, we can use the fact that AJ and BJ are congruent to draw the altitude from point J to side AB, which we will call JN. Similarly, we can draw the altitude from point I to side BC, which we will call IM.

Since AJ and BJ are congruent, the altitude JN will also be the perpendicular bisector of side AB, so it will pass through point M. Similarly, the altitude IM will pass through point G, which is the circumcenter of triangle ABC.

Now, we can use the Pythagorean theorem to find the lengths of JN and IM in terms of the given lengths:

[tex]JN^{2}= AJ^{2} -AN^{2} \\ = ( AH+HN)^{2} - AN^{2} \\=AH^{2} +2AH*HN+HN^{2}-AN^{2} \\[/tex]

[tex]IM^{2}= CI^{2} -CM^{2} \\=( CG-GM)^{2} -CM^{2} \\CG^{2}-2CG*GM+GM^{2} -CM^{2}[/tex]

Since CG = BG and GM = BM (since M is the midpoint of AB), we can simplify the expression for IM^2 as follows:

[tex]IM^{2}[/tex] = [tex]BG^{2}[/tex] - 2BG * BM + [tex]BM^{2}[/tex] - [tex]CM^{2}[/tex]

= [tex]BG^{2}[/tex] - [tex]BM^{2}[/tex] - [tex]CM^{2}[/tex]

Now, we can use the fact that BJ and CI intersect at point K to find the length of KJ:

KJ = BJ - BJ * (CK/CI)

= BJ * (1 - CK/CI)

= BJ * (1 - BM/CM)

To find BM/CM, we can use the fact that triangle BCI is isosceles with BI = CI, so the altitude IM is also a median of the triangle. This means that CM = 2/3 * BI. Similarly, we can find BJ in terms of JN using the fact that triangle ABJ is isosceles with AJ = BJ:

BJ = 2 * JN

Substituting these expressions into the equation for KJ, we get:

KJ = 2 * JN * (1 - 2/3 * BI/CM)

Now, we just need to find BI/CM in terms of the given lengths. Using the fact that triangle BCI is isosceles with BI = CI, we can find BI in terms of CG:

BI = CG - CI

Substituting this expression into the equation for [tex]IM^{2}[/tex]and simplifying, we get:

[tex]IM^{2}[/tex] =[tex]BG^{2}[/tex] - CG * CI

To learn more about Pythagorean theorem:

https://brainly.com/question/28361847

#SPJ1

HEEELLLLPPPPP MEEEEEEEEE

1. Solve.
a. 2/5t = 6
b. -4.5 = a-8
c. 1/2+p=-3
d. 1/2 = x3
e. -12 = -3y

Answers

The equation is saying that -12 is equal to -3 multiplied by y. To solve for y, divide both sides by -3. This would give an answer of 4.

What is equation?

An equation is a mathematical statement that expresses the equality or inequality of two values or expressions. It consists of two expressions connected by an equals sign, inequality sign or other relational operator. Equations can involve numbers, variables, and operations such as addition, subtraction, multiplication, division and exponentiation. An equation can be used to solve problems related to mathematics, science, engineering, finance, and many other disciplines. Equations can also be used to model and describe real-world phenomena.

t = 30

a = 12.5

p = -5.5

x = 2/3

y = 4.

To learn more about equation

https://brainly.com/question/2228446

#SPJ1

a. t = 30/2; To solve this equation, divide both sides by 2/5. The resulting equation is t = 30/2.

What is equation?

An equation is a mathematical statement that expresses the equality of two expressions by using an equals sign (=). It states that the two expressions on either side of the equals sign are equal in value. An equation is an example of a mathematical problem, which can be used to solve real-world problems.

b. a = 4.5; To solve this equation, add 8 to both sides. The resulting equation is a = 4.5.
c. p = -7/2; To solve this equation, add 3 to both sides. The resulting equation is p = -7/2.
d. x = 2; To solve this equation, divide both sides by 3. The resulting equation is x = 2.
e. y = 4; To solve this equation, divide both sides by -3. The resulting equation is y = 4.

To learn more about equation
https://brainly.com/question/2228446
#SPJ1

△CDE∼△PQR. CD=9 m, EC=15 m, PQ=15 m. What is the length of RP?

Answers

Answer:

RP = 25

Step-by-step explanation:

since the triangles are similar then the ratios of corresponding sides are in proportion, that is

[tex]\frac{RP}{EC}[/tex] = [tex]\frac{PQ}{CD}[/tex] ( substitute values )

[tex]\frac{RP}{15}[/tex] = [tex]\frac{15}{9}[/tex] ( cross- multiply )

9 RP = 15 × 15 = 225 ( divide both sides by 9 )

RP = 25

Use implicit differentiation to find an equation of the tangent line to the curve sin(x+y)=8x−8y at the point (π,π)

Answers

The equation of the tangent line to the curve sin( x y) = 8x- 8y on the factor( π, π) is y = (7/9) x-( 2π/ 9).

To discover the equation of the tangent line to the curve sin( x y) = 8x- 8y on the point( π, π), we want to apply implicit differentiation to discover the pitch of the tangent line at that point.

We begin through differencing both sides of the equation with reference to xcos( x y)( 1 dy/ dx) = eight- 8dy/ dx

After, we can simplify the expression by isolating the terms beholding dy/ dx on one aspect

cos( x y) cos( x y) dy/ dx = 8- 8dy/ dx

8 cos( x y)) dy/ dx = 8- cos( x y)

dy/ dx = ( 8- cos( x y))( 8 cos( x y))

Now we're suitable to discover the pitch of the tangent line at the factor( π, π) by plugging in x = π and y = π into the expression we simply derived

dy/ dx = ( 8- cos( 2π))( 8 cos( 2π))

dy/ dx = ( 8- 1)/( 8 1)

dy/ dx = 7/ nine

Thus, the pitch of the tangent line to the curve sin( x y) = 8x- 8y at the factor( π, π) is7/9.

To find the equation of the tangent line, we can use the point- slope form of the equation

y- y1 = m( x- x1)

In which m is the pitch we simply set up, and( x1, y1) is the point( π, π). Plugging in the values, we get

y- π = ( 7/ nine)( x- π)

Simplifying, we get

y = ( 7/ nine) x-( 2π/ nine)

Thus, the equation of the tangent line to the curve sin( x y) = 8x- 8y on the factor( π, π) is y = (7/9) x-( 2π/ 9).

Learn more about  implicit differentiation:-

https://brainly.com/question/30073882

#SPJ4

i have a reed. i know not its length. i broke from it one cubit and it fit 60times along the length of my field. i restored to the reed what i had broken off and it fit 30 times alone the wifth of my Field. the area of my field is 375 square nindas. what was the original length of the reed? 1nandas:12cubits​

Answers

The original length of the reed is 3.83 nindas which can be calculated by using the information given in the question.

What is area?

Area is a two-dimensional measurement of a surface or space. It is a measure of how much space is occupied by a two-dimensional object or surface. The area of a shape is determined by multiplying the length and width of the shape together.

Firstly, we need to calculate the width of the field. As the reed fits 30 times along the width, this implies that the width of the field is 30 times the length of the reed. Therefore, the width of the field is 30 x length of the reed.

Now, we need to calculate the area of the field. As the area of the field is given as 375 nindas², this implies that the area of the field is equal to 375 nindas².

We can substitute the width of the field (30 x length of the reed) into the equation for the area of the field, to yield: 375 nindas² = (30 x length of the reed) x length of the reed.

Solving for length of the reed, we get: length of the reed = (375/30)1/2 = 3.83 nindas.

Therefore, the original length of the reed is 3.83 nindas.

For more questions related to length

https://brainly.com/question/28108430

#SPJ1

What is the average rate of change between
the points (17, 5) and (19, --1)?

Answers

The average rate of change between the points (17, 5) and (19, -1) is -3.

What is the average rate of change?

If we have a given function y = f(x) with two known points (a, f(a)) and (b, f(b)), then the average rate of change in that interval [a, b] is:

R = ( f(b) - f(a))/(b - a)

Here we have the two points (17, 5) and (19, -1)

So we have:

a = 17 and f(a) = 5

b = 19 and f(b) = -1

Replacing that in the formula for the average rate of change we will get:

R = (-1 - 5)/(19 - 17)

R = -6/2

R = -3

The average rate of change is -3

Learn more about average rate of change:

https://brainly.com/question/872850

#SPJ1

Allan painted the circular patch on his driveway. He used the formula below to calculate the area of the circular patch. The diameter of the circular patch was 20 meters. What was the area of the patch? Assume pi=3.14

Answers

Answer: 314 square meters

Step-by-step explanation:

The formula for the area of a circle is given by A = πr^2, where r is the radius of the circle. Since the diameter of the circular patch is given as 20 meters, the radius would be half of that or 10 meters.

So, using the formula, we can calculate the area of the circular patch as follows:

A = πr^2

A = π(10)^2

A = 3.14(100)

A = 314 square meters

Therefore, the area of the circular patch is 314 square meters.

What is the meaning of "invertible n x n matrices"?

Answers

Answer: A matrix A of dimension n x n is called invertible if and only if there exists another matrix B of the same dimension, such that AB = BA = I, where I is the identity matrix of the same order.

Step-by-step explanation:

hope it helped! <3

Determine the number of elements of a set and represent the number of elements using a symbol

Answers

We can represent the number of elements in a set using the symbol |A| or n(A). So, we can say |A| = 5 or n(A) = 5. We can make generalizations about the equality of sets based on the definition above.

What is set?

In mathematics, a set is a collection of distinct objects, which can be anything such as numbers, letters, or other mathematical objects. These objects are called the elements or members of the set. Sets can be defined using various methods such as listing the elements, describing properties of the elements, or using set-builder notation. For example, we can define the set of even numbers using set-builder notation as {x | x is an integer and x is divisible by 2}. Sets play a fundamental role in various branches of mathematics, including algebra, geometry, and analysis. They are used to define mathematical structures such as groups, rings, and fields, and to study various mathematical concepts such as functions, relations, and cardinality.

Here,

11.1.4 To determine the number of elements of a set, you need to count the number of distinct elements in the set. For example, if you have a set A = {1, 2, 3, 4, 5}, then the number of elements in set A is 5.

11.1.5 Two sets are equal if they have exactly the same elements. For example, if we have set A = {1, 2, 3} and set B = {3, 2, 1}, then A and B are equal sets because they contain the same elements, even though the order of the elements is different. We can write this as A = B. If two sets are not equal, then we use the symbol ≠ to denote inequality. For example, if set A = {1, 2, 3} and set B = {4, 5, 6}, then A ≠ B.

Some of these generalizations are:

Two sets are equal if and only if they have the same elements.

The order of the elements in a set does not matter for equality.

If two sets have different elements, then they are not equal.

If two sets have the same elements, but with different multiplicities, then they are not equal.

To know more about set,

https://brainly.com/question/28492445

#SPJ1

PLS HELP FAST + BRAINLIEST!!

Answers

You just collect like terms
2x - 5 + x + x + 3
= 4x - 2 which you can simplify to 2x - 1

x - 5 + x - 5 + 3x - 1 + 3x - 1
=8x - 12 and you can simplify further to 2x -3

for the square you can just times the length by 4 as the sides are equal
4(3x - 2y) = 12x -8y and you can simplify this to 3x -2y

Two cellphone companies are offering different rate plans. Rogers is offering $19.99 per month, which includes a
maximum of 200 weekday minutes plus $0.35 for every minute above the maximum. TELUS is offering $39.99 for a
maximum 300 weekday minutes, but it charges $0.10 for every minute above the maximum. Above how many minutes
would TELUS be the better choice?

Answers

TELUS is the better choice, because if you were to multiply the minutes above maximum on each, if the number of minutes above is high enough Rogers $0.35 will eventually add up to TELUS’ $0.10 and will become more expensive.

the values or variables listed in the function declaration are called _____ paramters to the function.

Answers

The values or variables listed in the function declaration are called formal parameters to the function.

They are used to store the data that is passed into the function when it is called. The formal parameters are local variables, meaning that the values stored in them are only available within the function.

The arguments are the values passed to the function when it is called. These values are then assigned to the formal parameters and are used within the function to perform the desired task.

Formal arguments are produced at function entry and removed at function exit, behaving similarly to other local variables inside the function.

To learn more about formal parameters link is here

brainly.com/question/15008938

#SPJ4

PLEASE HELLP IM AWARDING 100 POINTS FOR THIS What is the scale factor, or constant of proportionality from Figure 1 to Figure 2?




Enter your answer as a decimal in the box.

Answers

Answer:

4:9

Step-by-step explanation:

Answer:

Scale factor = 2.25

Step-by-step explanation:

To find the scale factor between two similar shapes, we need to compare the corresponding sides of the shapes.

The scale factor is the ratio of the length of any side of one shape to the length of the corresponding side on the other shape.

From inspection of the given diagram, the ratio of the corresponding sides of the two similar figures is:

⇒ Figure 1 : Figure 2 = 8 : 18

Therefore, to find the scale factor from Figure 1 to Figure 2, divide the side length of Figure 2 by the corresponding side length of Figure 1:

[tex]\implies \sf Scale\;factor=\dfrac{18}{8}=2.25[/tex]

Oliver's normal rate of pay is $10.40 an hour.

How much is he paid for working 5 hours overtime one Saturday at time-and-a-half?

Answers

For this problem you want to multiply your hourly rate by your time worked and then you also want to multiply it by you time and a half factor so your problem should look like, 10.40 x 5 x 1.5 = ? And if you plug that all into a calculator you will get $78

PLEASE HELP ASAP! This composite figure is created by placing a sector of a circle on a triangle. What is the area of this composite figure? Use 3.14 for n. Round to the nearest hundredth. Show your work.

Answers

Answer: 24

Step-by-step explanation:

To find the area of the composite figure, we need to find the area of the sector and the area of the triangle and then add them together.

Area of sector = (θ/360) * π * r^2, where θ is the angle of the sector in degrees, r is the radius of the circle.

The angle of the sector can be found by subtracting the angle of the triangle from 360 degrees. The radius of the circle can be found by dividing the length of the arc by the angle of the sector.

Length of the arc = (θ/360) * 2πr = (60/360) * 2 * 3.14 * 4 = 4.19

Radius of the circle = 4.19/60 = 0.07

Angle of sector = 360 - 60 = 300 degrees

Area of sector = (300/360) * 3.14 * 0.07^2 = 0.0041

The area of the triangle can be found using the formula:

Area of triangle = (1/2) * base * height = (1/2) * 8 * 6 = 24

Therefore, the total area of the composite figure is:

0.0041 + 24 = 24.0041

Rounding to the nearest hundredth, the area of the composite figure is approximately 24.00.

5. What is the difference between (-3)² and 3²​

Answers

Answer:

the difference is the first one, (-3)^2, is negative while the other is positive

Step-by-step explanation:

Mary is 21 years old. She buys 50/100/25 liability insurance, and collision and
comprehensive insurance, each with $500 deductibles. What is her total annual
premium? Round to the nearest dollar. Do not state the units. Be sure to show work.

Liability Insurance
Type Amount Premium
25/50 $240
50/100 $385
100/300 $450

Property damage 25 $210
50 $150
100 $140


Collision and comprehensive premiums

$250 $172 $112
$500 $102 $87
$750 $85 $52

Rating factor
Age

17-20 male Female

3.1 1.64

21-24. 2.53. 1.22


25-29 1.73 1.0

Answers

According to the given information, Mary's total annual premium is $574 (rounded to the nearest dollar).

What is multiplication ?

In mathematics, multiplication is an arithmetic operation that combines two or more numbers to produce a product. It is represented by the symbol "×" or "*", or by placing the numbers next to each other with no symbol between them.

According to the given information:

Mary is 21 years old, so according to the rating factor table, her rating factor is 1.22 for a female.

For liability insurance, Mary has chosen the 50/100/25 coverage, which means $50,000 for bodily injury per person, $100,000 for bodily injury per accident, and $25,000 for property damage per accident. The premium for this coverage is $385.

For collision and comprehensive insurance, Mary has chosen a $500 deductible, so her premiums are $102 for collision and $87 for comprehensive.

To find the total annual premium, we add up the premiums for liability insurance and collision/comprehensive insurance:

Total premium = Liability premium + Collision premium + Comprehensive premium

Total premium = $385 + $102 + $87

Total premium = $574

Therefore, according to the given information, Mary's total annual premium is $574 (rounded to the nearest dollar).

To know more about multiplication visit :

https://brainly.com/question/1135170

#SPJ1

A water cooler springs a leak and empties in 2 minutes. The graph below shows the rate at which water leaks from the cooler as a function of time.

Answers

The amount of water that was in the cooler before it started leaking was 6 gallons.

Describe Integration?

Integration is a mathematical process that involves finding the integral of a function. It is the reverse operation of differentiation, which involves finding the derivative of a function. The integral of a function is a measure of the area under the curve of the function, between two given limits of integration.

The graph shows the rate at which water leaks from the cooler as a function of time, which means that the y-axis represents the rate of leakage in gallons per minute (gal/min), and the x-axis represents the time in minutes.

Since we know that the cooler emptied in 2 minutes, we can integrate the leakage rate over the time interval [0, 2] to find the total amount of water that leaked out:

Total amount of water leaked = ∫[0,2] leakage rate(t) dt

The leakage rate is given by the graph, which consists of a straight line connecting two points: (0,6) and (2,0). We can express this line as a linear equation in slope-intercept form:

leakage rate(t) = mt + b

where m is the slope of the line and b is the y-intercept. To find the slope, we can use the formula:

m = (y2 - y1) / (x2 - x1)

where (x1, y1) = (0,6) and (x2, y2) = (2,0). Plugging in the values, we get:

m = (0 - 6) / (2 - 0) = -3

So the equation of the line is:

leakage rate(t) = -3t + 6

Now we can integrate this equation over the time interval [0, 2] to get the total amount of water leaked:

Total amount of water leaked = ∫[0,2] (-3t + 6) dt

= [-3t²/2 + 6t] from 0 to 2

= (-3(2)²/2 + 6(2)) - (-3(0)²/2 + 6(0))

= (6 - 0) - (0 - 0)

= 6 gallons

Therefore, the amount of water that was in the cooler before it started leaking was 6 gallons.

To know more about amount visit:

https://brainly.com/question/14806644

#SPJ1

The complete question is :

If a drug has a concentration of 5.315 mg per 3.743 mL, how many mL are needed to give 4.719 gram of the drug? Round to 1 decimal.

Answers

Answer:

888.4 mL.

Step-by-step explanation:

To solve this problem, we can use the following formula:

Amount of drug (in mg) = concentration (in mg/mL) × volume (in mL)

We are given the concentration of the drug as 5.315 mg per 3.743 mL. To find the volume of the drug needed to give 4.719 g, we need to rearrange the formula to solve for volume:

Volume (in mL) = amount of drug (in mg) ÷ concentration (in mg/mL)

First, we need to convert 4.719 g to mg by multiplying by 1000:

4.719 g × 1000 mg/g = 4719 mg

Now we can substitute the given concentration and the calculated amount of drug into the formula and solve for volume:

Volume (in mL) = 4719 mg ÷ 5.315 mg/mL

Volume (in mL) ≈ 888.5 mL

Therefore, approximately 888.5 mL of the drug are needed to give 4.719 g. Rounded to 1 decimal, the answer is 888.4 mL.

let z=a+bi/a-bi where a and b are real numbers. prove that z^2+1/2z is a real number.

Answers

Answer:

Step-by-step explanation:

To prove that z^2 + 1/2z is a real number, we need to show that the imaginary part of z^2 + 1/2z is equal to zero.

We know that z = (a+bi)/(a-bi)

Multiplying the numerator and denominator by the complex conjugate of the denominator, we get

z = (a+bi)(a+bi)/(a-bi)(a+bi)

z = (a^2 + 2abi - b^2)/(a^2 + b^2)

Expanding z^2, we get:

z^2 = [(a^2 + 2abi - b^2)/(a^2 + b^2)]^2

z^2 = (a^4 + 2a^2b^2 + b^4 - 2a^2b^2 + 4a^2bi - 4b^2i)/(a^4 + 2a^2b^2 + b^4)

Simplifying, we get:

z^2 = (a^4 - b^4 + 2a^2bi)/(a^4 + 2a^2b^2 + b^4)

Now, let's compute z^2 + 1/2z:

z^2 + 1/2z = (a^4 - b^4 + 2a^2bi)/(a^4 + 2a^2b^2 + b^4) + 1/2[(a+bi)/(a-bi)]

To simplify this expression, we need to find a common denominator:

z^2 + 1/2z = (2a^5 - 2a^3b^2 + 3a^4b - 3ab^4 - 2b^5 + 3a^3bi + 3ab^3i)/(2(a^4 + 2a^2b^2 + b^4))

We can see that the imaginary part of z^2 + 1/2z is (3a^3b - 3ab^3)/(2(a^4 + 2a^2b^2 + b^4))

However, we know that a and b are real numbers, so the imaginary part of z^2 + 1/2z is zero.

Therefore, z^2 + 1/2z is a real number.

Bradley went to the store to buy ingredients for a new recipe. Artichokes were on sale for $3 per pound.
How much did Bradley pay if he bought
2
3
of a pound?
A $6. B $5. C $3 D $2

Answers

Answer :

Step-by-step explanation to problem:

2/3 * 3 = 2

we do 2/3 times 3 because $3 is for 1 pound and here we only need 2/3 of a pound

$2

Correct Answer = D

Point E represents the center of this circle. Angle DEF
has a measure of 80%.
Drag and drop a number into the box to correctly
complete the statement.
An angle measure of 80° is the size of an angle
that turns through
20
50
one-degree turns.
80
100
K

Answers

The measure of the arc intercepted by the angle and the vertical angles make up the angle subtended at the center. As a result, XYZ has a value of 35°.

What are angles?

Two lines intersect at a location, creating an angle.

An "angle" is the term used to describe the width of the "opening" between these two rays. The character is used to represent it.

Angles are frequently expressed in degrees and radians, a unit of circularity or rotation.

In geometry, an angle is created by joining two rays at their ends. These rays are referred to as the angle's sides or arms.

An angle has two primary components: the arms and the vertex. T

he two rays' shared vertex serves as their common terminal.

Hence, The measure of the arc intercepted by the angle and the vertical angles make up the angle subtended at the center. As a result, XYZ has a value of 35°.

Learn more on angles here click here:

brainly.com/question/2046046

#SPJ1

Other Questions
Define the term discrimination and mention three negative psychological consequences which discrimination based on HIV status could have on young learners? Learning that does not reveal itself until it is needed is called a) observational learning. b) latent learning stuck on this question need some help 2. write how many degrees are angle between.a) North and East _______ What structures receive postganglionic axons from the ciliary ganglion? ActivityWhen thinking about politics in the United States, your mind might Immediately turn to the two major political parties: the Democratic Party andthe Republican Party. Would It surprise you to know that there are more than two parties in other countries?Some countries, such as the United Kingdom, allow for many political parties to form, but in practice have only two or three. Other countries, suchas Denmark, Germany, and Mexico, tend to have three or more parties represented in government at all times. With so many parties, gaining amajority in the legislature becomes difficult and agreements between two or more parties to temporarily work together in a coalition arecommon.In the United States, however, having only two major political parties has become the norm. These two parties have developed an antagonisticrelationship in which the members of one party refuse to work or agree with members of the other party. The idea of being so committed to thepolitics of your party is called partisanship.Let's explore the relationship of the political parties to each other, how partisanship affects the political process in the United States, and whetherpartisan politics are beneficial or detrimental to US society.Part ABased on your own knowledge, why are partisanship and a two-party system significant parts of US politics? identify three political problems in the weimar republic. the national football league (nfl) records a variety of performance data for individuals and teams. to investigate the importance of passing on the percentage of games won by a team, the following data show the conference (conf), average number of passing yards per attempt (yds/att), the number of interceptions thrown per attempt (int/att), and the percentage of games won (win%) for a random sample of 16 nfl teams for one full season. Select the description of sensitivity analysis and how the advent of electronic spreadsheets has affected its use.A) Sensitivity analysis is the "what-if " techniques that managers use to examine how an outcome will change if the original predicted data are not achieved or if an underlying assumption changes. The advent of the electronic spreadsheets has greatly increased the ability to explore the effect of alternative assumptions but come at a much higher cost to companies.B) sensitivity analysis is the difference between the selling price and variable cost per unit. The advent of the electronic spreadsheet has greatly increased the ability to explore the effect of alternative assumptions at minimal cost.C) Sensitivity analysis measures how much a company can change for its products over and above the cost of acquiring or producing them. The assumptions and is more expensive than previous.D) Sensitivity analysis is the "what-if" technique that managers use to examine how an outcome will change if the original predicted data are not achieved or if an underlying assumption changes. The advent of the electronic spreadsheet has greatly increased the ability to explore the effect of alternative assumptions at minimal cost. TowerMotors Inc., an automotive company, searches for an external research provider to conduct marketing research. As a client who requires marketing research information, TowerMotors Inc. engages in an unethical practice if it _____.asks for detailed research proposals from various competing research providers with no intention of actually choosing a firm to conduct the research Will is building a rectangular fence around his farm. The total distance around the fence is 54 meters long. The length is 12 meters long, how long is the width? what is a disadvantage of taking out a home equity loan? The hanger image below represents a balanced equation. Write an equation to represent the imageHELP THIS IS DUE TODAY How is Caleb's dietary fiber intake? determine whether each observation generally corresponds to a physical change or a chemical change. a liquid freezes into a solid. choose... a solution heats up upon mixing with another. choose... a solid dissolves into water. choose... the color of a substance changes over time. choose... bubbles are produced upon mixing two solutions. choose... a precipitate is formed from two solutions. choose... the dcpromo wizard will guide you through which of the following installation scenarios? [check all that apply] The carotid sinus reflex protects the blood supply to the brain, whereas the aortic reflex is more concerned with maintaining adequate blood pressure in the systemic circuit as a whole: true or false Which of the following is often used to describe a nonprofit organization that solicits financial support ffrom government agencies and private donors in order to engage in charitable activities?A) GrantB) RemittanceC) FoundationD) Endowment Solve the system of equations: y = 2x 5 y = x^2 5 A. (1, 7) and (4, 3) B. (1, 4) and (3, 4) C. (0, 5) and (2, 1) D. (0, 5) and (2, 2) Consider the various ways in which oil pollution can reach the North American oceans. The greatest amount of oil pollution comes from which of the following sources? Choose one: O A. oil leakage from offshore drilling platforms O B. purposeful dumping of oil-contaminated bilge water from cruise ships O C. large oil tanker accidents near ports and in riversO D. oil residue on roadways and oil dumped in storm drains