We would expect about 490 students to ride the bus to school based on the sample
What is random sampling?It is the way of choosing a number of required items from a population given.
Each item has an equal probability of being chosen.
We have,
If 7 out of every 12 students ride the bus to school, then the proportion of students who ride the bus is 7/12 or approximately 0.5833.
If we assume that this proportion holds true for the entire school, then we can estimate the number of students who ride the bus as follows:
Number of students who ride the bus = Proportion who ride the bus x Total number of students
Number of students who ride the bus = 0.5833 x 840
Number of students who ride the bus = 489.99
Since we cannot have a fractional number of students, we would round this estimate to the nearest whole number.
Thus,
We would expect about 490 students to ride the bus to school based on the sample
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How do you find area and perimeter of a rectangle with the side lengths of 5x^2 and 12x?
Answer:
The area can be found by multiplying the two terms, and the perimeter by doubling and adding them.
Using this, we find that the area of the rectangle is 60x³, and the perimeter is 10x² + 24x.
Step-by-step explanation:
First let's find the area:
5x² × 12x
= 60x³
Now the perimeter:
2(5x² + 12x)
= 10x² + 24x
Solve the simultaneous equations
x + 5y = 20
x + 3y = 14
X= ?
Y= ?
Answer:
x=5, y=3
Explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Step-by-step explanation:
x=5 y=3 that is it that guy was right
Adrian is drawing a map to show the directions from his house to his grandmother's house. He uses a scale of 1 1/2
inches represents 12 miles. If the distance from his house to his grandmother's house is 36 miles, how long is the drawing
on the map?
The length of the drawing on the map for 36 miles is given by the equation A = 4 1/2 inches
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the number of miles be = 12 miles
So , 12 miles on the drawing represents = 1 1/2 inches
Now , the number of miles = 36 miles
12 x 3 = 36 miles
And , 36 miles on the drawing represents = 3 x 12 miles on the drawing
Substituting the values in the equation , we get
36 miles on the drawing represents A = 3 x ( 1 1/2 )
On simplifying the equation , we get
36 miles on the drawing represents A = 4 1/2 inches
Hence , the value on the drawing is 4 1/2 inches
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Rewrite in simplest terms: 8(-10r - 9) + 9r
Answer:
-2
Step-by-step explanation:
you answer the brackets first then add 9 then add 8
34 out of the 68 students at a school assembly were first-grade students. What percentage of the students at the assembly were first-graders?
Answer:
50%
Step-by-step explanation:
34/68=0.5=50%
Answer:
50%
Step-by-step explanation:
because yes
A rectangular room is 15 feet long and 10 feet wide. A scale drawing of the room has a width of 5 inches. What is the length of the room in the drawing?
Answer:
7.5
Step-by-step explanation:
Augie has hit the baseball 75% of the time this year. How many times will he hit the ball if
he bats a total of 32 times?
I’m need some help please! :(
Answer:
24 times
Step-by-step explanation:
75% = 0.75, so then you just do 0.75 * 32 = 24
Answer:
For this question, multiply 75% or 0.75 with 32. The result would be 24. So, Augie has hit the baseball 24 times.
What are the values of x and y?
A.
x equals 136 over 15 and y equals 17 over 15
B.
x equals 64 over 15 and y equals 17 over 15
C.
x equals 8 over 15 and y equals 136 over 15
D.
x equals 64 over 15 and y equals 136 over 15
Answer:
d. 8 over 15 = 136 over 15 this is the right answer okay
Help please!!!!! Giving extra points!!!!
Answer:
16
Step-by-step explanation:
Answer:
I think 16...
Step-by-step explanation:
Does the tablets shown a proportional relationship? If so, what is the value of y when x is 10?
Answer: Understand that a relationship between two variables, x and y, is proportional if it can be expressed in the form y/x=k or y=kx.
The sides of a regular hexagon is 16ft. What is the area of the hexagon?
Answer:
665.1
Step-by-step explanation:
The formula for an area of a hexagon is [tex]\frac{3\sqrt{3}}{2}S^{2}[/tex]
the S (side) is 16 so,
[tex]\frac{3\sqrt{3}}{2}16^{2}[/tex]
=[tex]\frac{3\sqrt{3} }{2}256[/tex]
=[tex]3\sqrt{3}[/tex] × 128
= [tex]384\sqrt{3}[/tex]
round to the nearest sq. rt. means that you have to round to the nearest tenth, or 0.1
[tex]384\sqrt{3}[/tex] is 665.10751 as a decimal
665.1 as rounded. Therefore, the area of the hexagon is 665.1 sq ft
yoo someone help asaapp!
Answer:
A 76
Step-by-step explanation:
7x+8+7x-2+5x+16+110=360
19x+132=360
19x=228
x=12
∠E=5(12)+16
=76
Answer:
76. hope it helps.................
Please help meeeeee, really stuck
Answer:
30 m²
Step-by-step explanation:
The figure can be divided into two parts.
The top rectangular part with its width as : w= 2m and length, l= 9 m
The area , A = l * w = 2*9 = 18 m²
The bottom rectangular part has its width as : w= 2m and length , l = 6 m
The area , A = l*w = 2*6 = 12 m²
Total area is given as :
18 + 12 = 30 m²
What is -30+-30-30-30
Answer:
-120
Step-by-step explanation:
-30
but you have -30 -30 -30
what if we add it to make -90
then we have -30
same thing if you forgot to put + like
-30 + -30 + -30 + 30
still would be -120
If someone gave you 100,000$ dollars, what would you spend it on, and why?
1. ROBUX
2.FORTNITE VC
3. 2K 21 VC
Or 100,00$ for a house and car + own a Resturant
Answer:
I would use it for a house, car, and own rhe restaraunt
Answer:
House+Car+restaurant
Step-by-step explanation:
Imagine being such an addict that you spend it on a video game tho
ez points :)
BRAINLIEST PLSSSSS
The junior class sold 120 turkey dinner plates and 200 chicken dinner plates for a total of $2,150. The senior class sold 100 turkey plates and 300 chicken plates, raising $2,625. What was the cost of each turkey dinner plate? What is the cost of each chicken plate?
Answer:
Write the system of equations with 2 unknowns x and y denoting the prices of two types of chickens:
(1) 120x + 200y = 2150
(2) 100x + 300y = 2625
Solving the system of equations above we have 2 solutions:
x = 15/2 = $ 7.5 and y = 25/4 = $ 6.25
Step-by-step explanation:
PLZ ANSWE ASAP ASAP ASAP LIKE RN ASAP PLZ PLZ
Answer: Kris's bike
Step-by-step explanation:
KRIS 297/4.5 = 66 gallons per mile
JAKE 366/6 = 61 gallons per mile
BEN = 265.2/5.2 = 52 gallons per mile
Determine how to translate triangle A'B'C' to triangle ABC.
Answer:
im not sure how to explain it, but you should look up your workbook on slader then type in the page of the homework you're doing and the answers are right there
Step-by-step explanation:
HELP ASAP YALL- PLS
Answer: x = 4
Step-by-step explanation:
since it is showing us that the angles are congruent, we know that the smaller triangle is just a scaled-down version of the larger one. in other words, it is the EXACT SAME triangle, just slightly smaller.
so, i redrew them next to each other, so i could compare them easily.
i looked at the corresponding sides that were given, and realized that the side that is 10 on the larger triangle is equal to 5 on the smaller triangle. the side that is equal to 6 on the larger triangle is equal to 3 on the smaller triangle. this concludes that the smaller triangle is exactly half the size of the larger triangle!
so, i figured (using logic) that x must equal 4, simply dividing its corresponding side (with a measure of 8) in half.
hope this helps! xoxo
The radius of the cone is 5 in and y = 13 in. What is the volume of the cone in terms of π?
A cone with a right triangle formed from its dimensions; the value of the height is h, and the value of the slant height is y; the height x and the radius form a right angle at the center of the cone.
Answer:
100π in3
Step-by-step explanation:
I took the test
Answer:
V= 100 π ^3
Step-by-step explanation:
V= π r^2 h/3
13^2 = 5^2 + h^2, h=12
V=π 5^2 12/3
V=π. 25. 4
V= 100 π ^3
In triangle PQR, PQ = 8 cm, QR = 6 cm, and mZPQR = 30°.
Exactly how long is PR?
P
8 cm
30°
6 cm
R
Answer:
PR = 10
Step-by-step explanation:
Pythagoras
hypotenus ² = base² + attitude ²
substitution ; PR² = 6²+8²
PR² = 100
PR = √100
So, PR = 10
hope it helps you ☺️
How you Can find the area of a composite figure?
Answer:
Here are the steps to find the area of a composite figure.
1. Split the composite figure into simpler shapes.
2. Find the area of each of the simpler shapes.
3. Add the area of all the simpler shapes together.
4. You'll have the area of the composite figure.
Let me know if this helps!
please help me i’ve been struggling PLEASE !!
Answer:
1. s=43
2. s=148
3. s=137
Step-by-step explanation:
3. If you buy a new car for $6,000 which depreciates at 4%/year,
what will the value be after 3 years?
Answer:
$5,308.42
Step-by-step explanation:
(see attached for reference)
recall that the formula for Depreciation
is given by
A = P ( 1 - r)^t,
where
A = final amount
P = principal amount = given as $6,000
r = depreciation rate = given as 4% = 0.04
t = time in years = given as 3,
Simply substitute these into the equation to get:
A = P ( 1 - r)^t
= 6000( 1 - 0.04) ^ 3
= 6000 (0.96)^3
= $5,308.42
The line of best fit for a scatterplot is shown what is the equation of this line of best fit in slope intercept form?
(pic provided)
1. y=-6x+3/4
2.y=6x+3/4
3. y=-3/4x+6
4. y=3/4x+6
Answer:
3. y=-3/4+6
Step-by-step explanation:
The y-int is 6, so you can already cross out the first two answers. Then, you know the slope is negative because the line is going downward, so -3/4 has to be the slope bc it is negative.
Answer:
y=-3/4x+6
Step-by-step explanation:
the y/intercept is (0,6) because that is the point where the line crosses the y-axis
knowing that use the point (0,6) and (4,3) to find the slope use rise over run so it goes up 3 and right 4
using the slope intercept equation y=mx+b it is y= -3/4+6
it is negative because its going downward
hope this makes sense and helps you guys!
the measure of AOC is 90 find the value of x, A 30 B 10 C 11
10
Step-by-step explanation:
3x° + 46° +14°
3*10° + 46 + 14° =90
therefore the value of x is 10
The value of x on the given figure is 10.
Option D is the correct answer.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
From the figure,
3x + 46 + 14 = 90
Now,
Simplifying.
3x + 60 = 90
Subtracting 60 on both sides.
3x = 90 - 60
3x = 30
Dividing 3 into both sides.
x = 10
Thus,
The value of x on the given figure is 10.
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The complete question is given on the attach image.
What is the volume of the tissue box 5in 7in 2in
Answer:
70 inches cubed
Step-by-step explanation:
5 times 7 times 2 gives you the volume.
4 dogs have weights of 5.2 kg, 3.5 kg, 7 kg, and 9.74 kg. What is the total weight of the dogs? What is the average weight of the 4 dogs?
Answer:
25.14kg is the total weight
Step-by-step explanation:
Answer:
The total weight of the dogs is 25.44 kg
The average weight of the dogs are 25 kg
Step-by-step explanation:
It is right on Egenuity comment if you want another answer and have a good day :)
Divide using any method 2x^2+5x+1 ÷ X+3
Question:
Solve the equation 2x2−5x+3=0 by the method of completing square.
Answer:
We have,
2x2−5x+3=0
⇒x2−25x+23=0 (Dividing throughough by 2)
⇒x2−25x=−23 (Shifting the constant term on RHS)
⇒x2−2(45)x+(45)2=(45)2−23 (Adding (21Coeff.ofx)2 onboth sides)
⇒(x−45)2=1625−23⇒(x−45)2=16
Solve the inequality
[tex] 25 + 8x \leqslant 475[/tex]
Answer: x<225/4
Step-by-step explanation: hope this help