A minor league ballpark attracts 88 fans and draws in 553 in revenue from ticket sales. A child tickets sales. A child's ticket cost s4 and an adult ticket is s7. How many of each type of tickets were sold?

Answers

Answer 1

Let's assume that x represents the number of child tickets sold and y represents the number of adult tickets sold.Based on the given information, we can set up the following equations:


Equation 1: x + y = 88 (total number of tickets sold)

Equation 2: 4x + 7y = 553 (total revenue from ticket sales)

To solve this system of equations, we can use substitution or elimination method. Let's use the elimination method: Multiplying Equation 1 by 4, we get: 4x + 4y = 352

Subtracting Equation 2 from this modified Equation 1:

[tex](4x + 4y) - (4x + 7y) = 352 - 553[/tex]

[tex]-3y = -201[/tex]

[tex]y = 67[/tex]

Substituting the value of y into Equation 1:

x + 67 = 88

x = 88 - 67

x = 21

Therefore, 21 child tickets and 67 adult tickets were sold. Let's assign variables to the unknowns in the problem. We'll let x represent the number of child tickets sold and y represent the number of adult tickets sold. According to the problem, the total number of tickets sold is 88. This can be represented by the equation x + y = 88. This equation states that the sum of the number of child tickets (x) and the number of adult tickets (y) equals 88.

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Related Questions

The plates on a vacuum capacitor have a radius of 2. 5


mm and are separated by a distance of 0. 75 mm.



What is the capacitance of this capacitor?



a. 2. 3 x 10^-13 F


b. 9. 3 x 10^-11 F


c. 3. 0 x 10^-11 F


d. 2. 3 x 10^-10 F

Answers

The capacitance of a parallel plate capacitor can be calculated using the formula:

C = (ε₀ * A) / d

Therefore, the correct option is:

d. 2.3 x 10^-10 F

Where:

C is the capacitance

ε₀ is the permittivity of free space (approximately 8.854 x 10^-12 F/m)

A is the area of one of the plates

d is the separation distance between the plates

Given that the radius of each plate is 2.5 mm, the area (A) can be calculated as follows:

A = π * r^2

A = π * (2.5 mm)^2

The separation distance between the plates is 0.75 mm.

Now we can substitute the values into the capacitance formula:

C = (ε₀ * A) / d

C = (8.854 x 10^-12 F/m) * (π * (2.5 mm)^2) / (0.75 mm)

Let's calculate the value:

C ≈ 2.3228 x 10^-10 F

Rounding to the nearest significant figure, the capacitance is approximately 2.3 x 10^-10 F.

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The price of an item is increased by 20% , if the new price is Rs36000 what is the price of item before increase? *

Answers

Let's denote the original price of the item as [tex]\(x\)[/tex]. According to the problem, the price is increased by 20% to reach a new price of Rs36000.

The increase in price can be calculated by multiplying the original price [tex]\(x\)[/tex] by the decimal equivalent of the percentage increase, which is [tex]\(1 + \frac{20}{100}\)[/tex] or [tex]\(1.2\)[/tex].

Thus, the new price can be expressed as:

[tex]\[1.2x = 36000\][/tex]

To find the original price, we need to isolate [tex]\(x\)[/tex] on one side of the equation. We can do this by dividing both sides of the equation by 1.2:

[tex]\[\frac{1.2x}{1.2} = \frac{36000}{1.2}\][/tex]

Simplifying the equation gives:

[tex]\[x = \frac{36000}{1.2}\][/tex]

Evaluating this expression:

[tex]\[x = 30000\][/tex]

Therefore, the price of the item before the increase was Rs30000.

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Part B


In the equation you wrote in part A, which is the independent value and which is the dependent value?

Answers

If the equation in part A is y = mx + b, then the independent variable would be x while the dependent variable would be y.

How to tell the dependent and independent variables

The independent variable in an equation is that which is unaffected by another variable. It is the causative element that can be changed by the person solving the problem to get different forms of the y or dependent variable.

So, for the above equation, different values can be assigned to x to result in a change of y. If x is changed to 3, y becomes 6.

Complete Question:

Part B

In the equation, you wrote in part A, which is the independent value, and which is the dependent value? The equation is y = mx + b.

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The perimeter of a form is 187. 2m. It its width is 39m, then find the ratio between its length an with

Answers

The ratio of the length to the width is 36.4 : 13.

To find the length of the form,

We have to subtract the twice the width from the perimeter.

Length  = Perimeter - 2 x Width Length

             = 187.2m - 2 x 39m Length

              = 109.2m

The ratio of the length to the width of the form is therefore,

⇒ Length : Width  = 109.2m : 39m

Simplifying this ratio by dividing both sides by 3, we get,

⇒ Length : Width = 36.4m : 13m

So the ratio of the length to the width is 36.4 : 13.

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PLEASE HELP!!!!For Trapezoid QRST, M and P are midpoints of the legs.


If PM=2x, QR=3x, and TS=10, find PM.

Answers

In Trapezoid QRST, with midpoints M and P on the legs, if PM is equal to 2x, QR is equal to 3x, and TS is equal to 10, we need to find the value of PM.

In a trapezoid, the midpoints of the legs divide the bases into two equal segments. Let's consider the given information:

PM = 2x (length of segment PM)

QR = 3x (length of segment QR)

TS = 10 (length of segment TS)

Since M and P are midpoints, we can conclude that PM is equal to half of QR:

PM = 1/2 * QR

Substituting the given value of QR:

2x = 1/2 * 3x

To solve for x, we can multiply both sides of the equation by 2:

4x = 3x

Subtracting 3x from both sides:

4x - 3x = 3x - 3x

x = 0

Since x is equal to 0, we can substitute it back into the expression for PM:

PM = 2x

PM = 2(0)

PM = 0

Therefore, PM is equal to 0.

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Rapunzel cut off 2/3 of her hair. She donated 7/8 of what she cut off to a wig shop


What fraction of her hair did Repunzel donate?

Answers

Rapunzel cut off 2/3 of her hair. She donated 7/8 of what she cut off to a wig shop. The fraction of Rapunzel's hair that was donated to the wig shop is 7/8 x 2/3. This fraction simplifies to: 14/24. This is because to multiply fractions we simply multiply the numerators (top number) and denominators (bottom number) together to give the new fraction.

Rapunzel cut off 2/3 of her hair. She donated 7/8 of what she cut off to a wig shop. The fraction of Rapunzel's hair that was donated to the wig shop is 7/8 x 2/3. This fraction simplifies to: 14/24. This is because to multiply fractions we simply multiply the numerators (top number) and denominators (bottom number) together to give the new fraction. So, 7/8 x 2/3 can be expressed as (7 x 2)/(8 x 3) which is equal to 14/24. Therefore, Rapunzel donated 14/24 or 7/12 of her hair to the wig shop. Rapunzel cut off 2/3 of her hair.

This means she kept 1/3 of her hair. She then donated 7/8 of what she cut off to a wig shop. To calculate the fraction of her hair that she donated we need to find 7/8 of 2/3. Multiplying fractions requires multiplying the numerators (top numbers) and the denominators (bottom numbers) together. 7/8 x 2/3 = (7 x 2)/(8 x 3) = 14/24. Simplifying the fraction by dividing both numerator and denominator by 2 gives 7/12. So Rapunzel donated 7/12 of her hair to the wig shop.

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Amir is sorting his stamp collection. he made a chart of the fraction of stamps from each country in his collection. 7/12 of Amir's stamps are either from either Morocco or Spain.

Answers

Amir is sorting his stamp collection. He made a chart of the fraction of stamps from each country in his collection. 7/12 of Amir's stamps are either from either Morocco or Spain. The long answer to this question is given below:Answer:7/12 of Amir's stamps are either from Morocco or Spain.

5/12 of his stamps are from Spain and the remaining 2/12 of his stamps are from Morocco. The denominator of the given fraction is 12. Therefore, the numerator of the fraction represents the number of stamps from either Morocco or Spain. Let's consider the given fraction; 7/12The numerator of this fraction represents the number of stamps from either Morocco or Spain. Let S be the number of stamps from Spain.

Let M be the number of stamps from Morocco. Using the given information, we have: S + M = 7/12..... (1)Also, S/12 represents the fraction of stamps from Spain and 2/12 represents the fraction of stamps from Morocco. We can represent the number of stamps from Spain and Morocco in the following manner: S = 5/12 and M = 2/12Let's substitute these values in equation (1).We get:5/12 + 2/12 = 7/12Hence, 7/12 of Amir's stamps are either from either Morocco or Spain. Out of the 7/12 of the stamps, 5/12 are from Spain, and the remaining 2/12 are from Morocco.

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Find the solution set of the system of linear equations represented by the augmented matrix. (If there is no solution, enter NO SOLUTION. If the system has an infinite number of solutions, set



x2 = t and solve for x1 in terms of t.)



| 1 0 0 |



| 0 1 6 | (2x3 matrix)

Answers

System of linear equations represented by the augmented matrix . It means that we can take any real value for x1 and x2, while x3 will always be -t/6. Here, the system of linear equations has an infinite number of solutions.

The augmented matrix | 1 0 0 || 0 1 6 | is representing the following system of linear equations;`x1 = 0``x2 + 6x3 = 0`Using x2 = t and

solving for x1 in terms of t;x2 = tx1 = 0 (when x2 = t)Then, the solution set of the system of linear equations represented by the augmented matrix | 1 0 0 || 0 1 6 | is {x1=0, x2=t, x3=-t/6}

where t is an arbitrary constant.

We can see that x1 and x2 are arbitrary constants, but x3 = -t/6. It means that we can take any real value for x1 and x2, while x3 will always be -t/6.

Here, the system of linear equations has an infinite number of solutions.

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Elijah goes to the county fair with $20. The entrance fee is $3. 75 and each ride costs $3. 25. Which inequality can be used to find the number of rides, r, Elijah can go on

Answers

The inequality that can be used to find the number of rides, r, Elijah can go on is 3.25r ≤ 20 - 3.75.

In this scenario, Elijah has $20, and the entrance fee is $3.75. Each ride costs $3.25. To determine the maximum number of rides Elijah can go on, we need to subtract the entrance fee from the total amount of money he has and divide the remaining amount by the cost of each ride.

The left side of the inequality, 3.25r, represents the total cost of r rides (3.25 multiplied by the number of rides). The right side of the inequality, 20 - 3.75, represents the remaining amount of money after deducting the entrance fee.

The inequality states that the total cost of the rides (3.25r) should be less than or equal to the remaining amount of money (20 - 3.75). This ensures that Elijah has enough money to cover the cost of the rides without exceeding his available funds.

By solving the inequality, we can determine the maximum number of rides Elijah can go on within his budget.

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What happens to the value of f(x) = log4x as x approaches [infinity]?.

Answers

As x approaches infinity, the value of the function f(x) = log4x approaches infinity as well. The logarithm function with a base greater than 1 increases without bound as its input increases, so the value of log4x becomes arbitrarily large as x becomes larger.

The logarithm function log4x represents the exponent to which the base 4 must be raised to obtain x. As x approaches infinity, the function evaluates the behavior of the logarithm for extremely large values.

In this case, as x becomes larger and larger, log4x increases without bound. This means that there is no finite limit or specific value that f(x) approaches as x approaches infinity. Instead, f(x) grows infinitely, indicating that the function's value becomes arbitrarily large as x becomes larger. Therefore, the value of f(x) = log4x approaches infinity as x approaches infinity.

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coordinate plane with triangles QRS and UTS with Q at negative 6 comma 2, R at negative 2 comma 6, S at negative 2 comma 2, T at negative 2 comma 0, and U at negative 4 comma 2



Which set of transformations would prove ΔQRS ~ ΔUTS?



Reflect ΔUTS over y = 2, and dilate ΔU′T′S′ by a scale factor of 2 from point S.


Reflect ΔUTS over y = 2, and translate ΔU′T′S′ by the rule (x − 2, y + 0).


Translate ΔUTS by the rule (x + 0, y + 6), and reflect ΔU′T′S′ over y = 6.


Translate ΔUTS by the rule (x − 2, y + 0), and reflect ΔU′T′S′ over y = 2.

Answers

The set of transformations that would prove ΔQRS ~ ΔUTS is to translate ΔUTS by the rule (x - 2, y + 0) and reflect ΔU'T'S' over y = 2.

To prove that ΔQRS ~ ΔUTS, we need to show that the two triangles are related through a combination of transformations.

The first transformation is a translation of ΔUTS by the rule (x - 2, y + 0). This means that every point in ΔUTS will be moved 2 units to the left and 0 units vertically. The translated triangle is denoted as ΔU'T'S'.

The second transformation is a reflection of ΔU'T'S' over the line y = 2. This reflection flips the triangle across the line, maintaining the same shape but reversing the orientation.

These two transformations combined, translation and reflection, establish a correspondence between the corresponding vertices of the two triangles. ΔU'T'S' is the transformed version of ΔUTS.

Since the two triangles undergo the same transformations, they have a proportional relationship and are therefore similar, which can be denoted as ΔQRS ~ ΔU'T'S'.


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Match each radical expression with the equivalent exponential expression. Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse. 3√4 3√ 2√3 2√5

Answers

Matching the radical expressions with their equivalent exponential expressions, we have 3√4 corresponding to 2^2/3, and 3√ to 2^1/3. Similarly, 2√3 can be matched with 3^1/2, and 2√5 with 5^1/2.

Radical expressions and exponential expressions are two different ways of representing the same mathematical concept. The radical symbol, denoted by √, represents the square root, cube root, or higher roots of a number. On the other hand, exponential expressions involve raising a base number to a given exponent.

In this case, the first radical expression is 3√4. The number inside the radical is 4, and the index outside the radical is 3, indicating the cube root. The equivalent exponential expression for this is 2^(2/3), where the base is 2 and the exponent is 2/3. This means taking the cube root of 4 is the same as raising 2 to the power of 2/3.

The second radical expression is 3√. Here, the number inside the radical is not specified, so we assume it to be 2 (as it is the most common convention). Therefore, the equivalent exponential expression is 2^(1/3), indicating the cube root of 2.

Moving on to the third radical expression, 2√3, the number inside the radical is 3, and the index outside the radical is 2, representing the square root. The corresponding exponential expression is 3^(1/2), which means taking the square root of 3.

Finally, the fourth radical expression is 2√5, where the number inside the radical is 5, and the index outside the radical is 2, representing the square root. The equivalent exponential expression is 5^(1/2), indicating the square root of 5.

In summary, the radical expressions 3√4, 3√, 2√3, and 2√5 can be matched with their equivalent exponential expressions: 2^(2/3), 2^(1/3), 3^(1/2), and 5^(1/2), respectively.

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A parrallelogram with a base four times the height and an area less than 200 square feet

Answers

The height is less than 5√2 feet and the base is less than 20√2 feet.

A parallelogram is a two-dimensional shape with two pairs of parallel sides. It has four sides and four angles. It is similar to a rectangle, except that its opposite sides are parallel and not necessarily of equal length.

A parallelogram with a base four times the height has the formula A=bh, where b is the length of the base and h is the height. Therefore, if the base is four times the height, then we can write b=4h. We can substitute this value of b into the formula A=bh to obtain A=4h×h=4h². Thus, the area of the parallelogram is 4h².

Therefore, the height is less than 5√2 feet. We can find the corresponding value of the base by using the equation b=4h. Thus, the base is less than 4(5√2)=20√2 feet.Since we know the height and the base of the parallelogram, we can calculate its area. The formula for the area of a parallelogram is A=bh, so we can write:A=(20√2)(5√2)=200 square feet.Since the area of the parallelogram is less than 200 square feet, it must be less than this value.

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What is double root at 3 and a single root at -7 factored

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The factored form of a quadratic expression with a double root at 3 and a single root at -7 is (x - 3)^2(x + 7).

A quadratic expression in factored form has the general form (x - r1)(x - r2), where r1 and r2 are the roots of the expression. In this case, the roots are a double root at 3 and a single root at -7, which means that the expression can be factored as follows: (x - 3)(x - 3)(x + 7).

Simplifying, we can write this expression as (x - 3)^2(x + 7). The double root at 3 means that the quadratic equation has two identical roots, so (x - 3) appears twice in the factored form. The single root at -7 means that (x + 7) appears only once. The factored form can be useful for solving quadratic equations and for finding the roots of a quadratic expression.

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A football team carried out a report to see the impact of stretching on preventing injury. Of the 45 footballers in the squad 36 stretch regularly. Of those who stretch, 6 got injured last year. There was a total of 10 injured players last year. The results are presented in the frequency tree

Answers

Among the 45 footballers, stretching regularly is associated with a lower injury rate. Out of the 36 footballers who stretch, 6 got injured, while among the 9 footballers who do not stretch, 4 got injured.

The frequency tree represents the data from the report on the impact of stretching on preventing injury in a football team. The tree shows that out of the 45 footballers in the squad, 36 of them stretch regularly. Among the footballers who stretch, 6 got injured last year. The total number of injured players last year was 10.

From the given information, we can analyze the relationships between the different categories. Out of the 45 footballers, 36 stretch regularly, which means that 9 footballers do not stretch. Since the total number of injured players is 10 and 6 of them are from the stretching group, the remaining 4 injured players must come from the non-stretching group.

To summarize, the report suggests that among the 45 footballers, stretching regularly is associated with a lower injury rate. Out of the 36 footballers who stretch, 6 got injured, while among the 9 footballers who do not stretch, 4 got injured. These findings highlight the potential benefits of incorporating stretching exercises into the team's routine to help prevent injuries. However, it is important to consider other factors and conduct further analysis to establish a more comprehensive understanding of injury prevention in the football team.

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A rental car costs d dollars per day and $40 for insurance. If the total cost for a six day rental is $260, what is the daily rate? Write an equation and solve.

Answers

Answer: Let's denote the daily rate for the rental car as "d" (in dollars per day).

According to the given information, the rental car costs d dollars per day and an additional $40 for insurance.

For a six-day rental, the total cost is $260.

The equation to represent this situation is:

6d + 40 = 260

To solve for the daily rate (d), we can isolate the variable by subtracting 40 from both sides of the equation:

6d = 260 - 40

6d = 220

Finally, divide both sides of the equation by 6 to solve for d:

d = 220 / 6

d ≈ 36.67

Therefore, the daily rate for the rental car is approximately $36.67.

a. Find the frequency if C (520) is raised by a fifth to G . ____________ cps.


b. Find the frequency if this G is lowered by a fourth to D. ____________ cps.


(Round to the nearest hundredth if necessary.)

Answers

The frequency of G when C (520 Hz) is raised by a fifth is 780 Hz.

The frequency of D when G is lowered by a fourth is 1040 Hz.

A. To find the frequency when C (520 Hz) is raised by a fifth to G, we can use the ratio of frequencies between the notes.

A fifth interval corresponds to a frequency ratio of 3:2.

So, we can calculate the frequency of G using the following equation:

Frequency of G = Frequency of C x (3/2)

Frequency of G = 520 Hz x (3/2) = 780 Hz

Therefore, the frequency of G when C (520 Hz) is raised by a fifth is 780 Hz.

B. To find the frequency when G is lowered by a fourth to D, we can use the ratio of frequencies between the notes.

A fourth interval corresponds to a frequency ratio of 4:3. So, we can calculate the frequency of D using the following equation:

Frequency of D = Frequency of G x (4/3)

Frequency of D = 780 Hz x (4/3) = 1040 Hz

Therefore, the frequency of D when G is lowered by a fourth is 1040 Hz.

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Explain the process of solving a system of equations using substitution

Answers

One variable, from either of the equations, the subject of that equation and substitute it in the other equation.

We have,

To describe the process of solving a system of equations using substitution.

Now,

For any given system of linear equations, we use a method called substitution method for solving the equations.

We can make one variable, from either of the equations, the subject of equation and substitute it in the other equation.

This way, we get to find the value of the remaining variable and next we substitute this value in one of the equations to get the value of the variable left.

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On a frictionless toy race track, a 0. 035 kg 0. 035 kg0, point, 035, space, start text, k, g, end text toy car moving right at 0. 30 m s 0. 30 s m ​ 0, point, 30, space, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction collides with another 0. 040 kg 0. 040 kg0, point, 040, space, start text, k, g, end text toy car moving left at 0. 20 m s 0. 20 s m ​ 0, point, 20, space, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction. After the collision, the 0. 035 kg 0. 035 kg0, point, 035, space, start text, k, g, end text car moves left at 0. 20 m s 0. 20 s m ​ 0, point, 20, space, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction

Answers

The collision, the 0.035 kg car moves left at 0.20 m/s and the 0.040 kg car moves left at approximately 1.1125 m/s.

Based on the given information, we can analyze the collision using the principles of conservation of momentum and the law of motion.

First, let's calculate the initial momentum of each car before the collision:

Initial momentum of the first car (0.035 kg) moving right:

p1 = m1 * v1 = 0.035 kg * 0.30 m/s

Initial momentum of the second car (0.040 kg) moving left:

p2 = m2 * v2 = 0.040 kg * (-0.20 m/s) [negative because the car is moving in the opposite direction]

Next, let's consider the conservation of momentum during the collision. According to this principle, the total momentum before the collision should be equal to the total momentum after the collision. Since the track is frictionless, no external forces act on the cars, so the total momentum should be conserved.

Therefore, we can write the equation:

p1 + p2 = p1' + p2'

After the collision, the 0.035 kg car moves left at 0.20 m/s. Let's denote the final velocity of the second car as v2':

Final momentum of the first car:

p1' = m1 * (-0.20 m/s) [negative because the car is moving left]

Final momentum of the second car:

p2' = m2 * v2' = 0.040 kg * 0.20 m/s

Now we can substitute the values into the momentum equation and solve for v2':

0.035 kg * 0.30 m/s + 0.040 kg * (-0.20 m/s) = 0.035 kg * (-0.20 m/s) + 0.040 kg * v2'

Simplifying the equation:

0.0105 kg m/s - 0.008 kg m/s = -0.007 kg m/s + 0.040 kg * v2'

Rearranging and solving for v2':

0.0025 kg m/s = 0.047 kg m/s + 0.040 kg * v2'

0.0025 kg m/s - 0.047 kg m/s = 0.040 kg * v2'

-0.0445 kg m/s = 0.040 kg * v2'

v2' = -0.0445 kg m/s / 0.040 kg

v2' = -1.1125 m/s

Therefore, after the collision, the 0.035 kg car moves left at 0.20 m/s and the 0.040 kg car moves left at approximately 1.1125 m/s.

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Noah and Gabriel have taken 6 quizzes in English class so far. There are no outliers in their quiz scores. Find the measure of variability for Noah’s scores. Noah’s scores: 84, 85, 85, 86, 90, 92 Mean: 87 Range: 92 – 84 = 8 Gabriel’s scores: 82, 85, 86, 86, 90, 94 Mean: 87. 17 Range: 94 – 82 = 12 MAD: 3. 22 What is Noah’s mean absolute deviation? StartFraction StartAbsoluteValue 87 minus 84 EndAbsoluteValue (2) StartFraction StartAbsoluteValue 87 minus 85 EndAbsoluteValue StartFraction StartAbsoluteValue 87 minus 86 EndAbsoluteValue StartFraction StartAbsoluteValue 87 minus 90 EndAbsoluteValue StartFraction StartAbsoluteValue 87 minus 92 EndAbsoluteValue over 6 EndFraction = StartFraction 3 4 1 3 5 over 6 EndFraction 1. 33 2 2. 67 3. 5.

Answers

Noah's mean absolute deviation is 2.67 when the mean score is 87.

Thus, option (3) is correct.

To calculate Noah's mean absolute deviation (MAD) based on his quiz scores, we need to find the average of the absolute differences between each score and the mean.

The formula to calculate mean absolute deviation (MAD) is

[tex]{\text} MAD[/tex] =

Given:

Noah's scores: 84, 85, 85, 86, 90, 92

Mean of Noah's scores: 87

Now, the absolute differences between each score and the mean, as

|87 - 84| = 3

|87 - 85| = 2

|87 - 85| = 2

|87 - 86| = 1

|87 - 90| = 3

|87 - 92| = 5

Now, the mean of these absolute differences are:

MAD = (3 + 2 + 2 + 1 + 3 + 5) / 6

        = 16 / 6

        = 2.67

Therefore, Noah's mean absolute deviation is 2.67.

Thus, option (3) is correct.

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The question attached here seems to be inappropriate form, the appropriate form is:

Noah and Gabriel have taken 6 quizzes in English class so far. There are no outliers in their quiz scores.

Find the measure of variability for Noah’s scores.

Noah’s scores: 84, 85, 85, 86, 90, 92

Mean: 87

Range: 92 – 84 = 8

Gabriel’s scores: 82, 85, 86, 86, 90, 94

Mean: 87. 17

Range: 94 – 82 = 12

MAD: 3. 22

What is Noah’s mean absolute deviation?

|87 -84| + {97 - 85| + |87-90| + |87-90| + |97-92| / 6

1. 1.33

2. 2

3. 2.67

4. 3.5

An element with mass 780 grams decays by 16. 3% per minute. How much of the element is remaining after 16 minutes, to the nearest 10th of a gram?.

Answers

An element with a mass of 780 grams decays by 16.3% per minute. To find the amount of the element remaining after 16 minutes, we can use the following formula: `A = P(1 - r)ⁿ`, where `A` is the amount remaining, `P` is the initial amount, `r` is the rate of decay, and `n` is the number of minutes.

Using this formula, we can plug in the given values and solve for `A`:

```
P = 780 grams
r = 0.163 (since the element decays by 16.3% per minute)
n = 16 minutes

A = P(1 - r)ⁿ
A = 780(1 - 0.163)¹⁶
A ≈ 115.3 grams (rounded to the nearest 10th of a gram)
```

Therefore, after 16 minutes, approximately 115.3 grams of the element are remaining.

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Consider a battery whose voltage is a random variable with a variance of 1. Two independent measurements of the voltage are taken to estimate the voltage, the first with a variance of 1, and the second with a variance of 4. A) Write the weighted least squares voltage estimate in terms of the initial estimate 30 and the two measurements y1 and y2. B) If weighted least squares is used to estimate the voltage, what is the variance of voltage estimate after the first measurement

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A) The weighted least squares voltage estimate is 0.1y1 + 0.9y2 + 30, (B) The variance of the voltage estimate after the first measurement is 0.5.

A) The weighted least squares voltage estimate is calculated by minimizing the sum of the squared errors between the measurements and the estimate. The weights are inversely proportional to the variances of the measurements.

In this case, the weights are 1/1 and 1/4. The weighted least squares voltage estimate is then: y_hat = (1/1)y1 + (1/4)y2 + 30

B) The variance of the voltage estimate is calculated by taking the weighted average of the variances of the measurements. In this case, the variances are 1 and 4.

The weights are 1/1 and 1/4. The variance of the voltage estimate is then: var(y_hat) = (1/1)var(y1) + (1/4)var(y2) = 0.5

It is important to note that the weighted least squares voltage estimate is not necessarily the same as the average of the two measurements. In this case, the weighted least squares voltage estimate is 30.5, while the average of the two measurements is 31.

The weighted least squares voltage estimate is a more accurate estimate of the voltage than the average of the two measurements because it takes into account the variances of the measurements.

The variance of a measurement is a measure of how spread out the data is. A measurement with a high variance is more likely to be different from the true value than a measurement with a low variance.

In this case, the first measurement has a low variance, while the second measurement has a high variance.

This means that the first measurement is more likely to be accurate than the second measurement. The weighted least squares voltage estimate takes this into account by giving more weight to the first measurement.

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What type of transformation is a translation?A. A transformation that moves every point in a figure the same distance and the same directionB. A transformation that rotates a figure about a given pointC. A transformation that flips a figure across the x- or y-axisD. A transformation that reduces or enlarges a figure

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A translation is a type of transformation that moves every point in a figure the same distance and in the same direction. This is option A.

In mathematics, a transformation refers to changing the position, shape, or size of a figure. A translation specifically involves shifting or sliding a figure in a specific direction. It is characterized by moving every point in the figure the same distance and in the same direction.

For example, imagine a shape on a coordinate plane. If we perform a translation on the shape, each point in the shape will be moved parallel to a certain vector, which specifies the direction and distance of the translation. The resulting figure will have the same shape and orientation as the original, just shifted in a certain direction.

Therefore, a translation is correctly described as a transformation that moves every point in a figure the same distance and in the same direction, making option A the correct answer.

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Martin's car travels 360 miles on 12 gallons of gas. How far will the car travel on 3 gallons of gas?

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distance travel by the car with 3 gallons of gas, we have to use a proportion.

To determine how far Martin's car will travel on 3 gallons of gas, we can set up a proportion based on the given information.

We know that Martin's car travels 360 miles on 12 gallons of gas. Therefore, the mileage per gallon can be calculated as:

Mileage per gallon = Total miles / Total gallons

Mileage per gallon = 360 miles / 12 gallons

Mileage per gallon = 30 miles/gallon

Now, we can use this mileage per gallon to calculate the distance the car will travel on 3 gallons of gas:

Distance = Mileage per gallon × Number of gallons

Distance = 30 miles/gallon × 3 gallons

Distance = 90 miles

Therefore, Martin's car will travel 90 miles on 3 gallons of gas.

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A regular octagon is mapped onto itself every time it is rotated.

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A regular octagon is rotationally symmetric.

A regular octagon is a polygon with eight equal sides and eight equal angles. When a regular octagon is rotated by any multiple of 45 degrees (one-eighth of a full rotation), it appears exactly the same as its original orientation. This is because each vertex of the octagon is equidistant from the center of rotation, resulting in the same shape being mapped onto itself. The rotational symmetry of a regular octagon makes it a visually appealing and mathematically interesting geometric figure.

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How does a regular octagon behave when it is rotated and mapped onto itself repeatedly?

733 ÷ 4


This model describes the division calculation. Start with the greatest multiple of 100 that can be multiplied by the divisor with going over the dividend.


Enter a number in each box to correctly complete the model and quotient.

Answers

The division calculation of 733 divided by 4 can be solved by finding the greatest multiple of 100 that can be multiplied by 4 without exceeding 733. The quotient is obtained by dividing this multiple by 4.

To solve 733 ÷ 4, we begin by finding the greatest multiple of 100 that can be multiplied by 4 without exceeding 733. In this case, the multiple is 700 (100 multiplied by 7). Next, we divide this multiple by 4 to obtain the quotient. The division can be performed as follows:

175

4 | 733

We start by dividing 7 (the tens digit of 700) by 4, which equals 1. We place this quotient of 1 on top. Then, we multiply 1 by 4, which equals 4, and subtract it from 7 to get the remainder of 3. We bring down the ones digit of 33, and the process is repeated. We divide 33 by 4, which gives us 8 with no remainder. Therefore, the quotient of 733 ÷ 4 is 183, with no remainder.

In summary, when dividing 733 by 4, we find the greatest multiple of 100 that can be multiplied by 4 without exceeding 733, which is 700. Dividing 700 by 4 gives us a quotient of 175. Therefore, the answer to 733 ÷ 4 is 183.

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En la siguiente tabla se muestra la cantidad de masa muscular que incrementaron en el último mes 4 amigos que van a entrenar a un gimnasio.






¿Para cuáles personas el incremento de masa muscular se representa por un número decimal periódico mixto?



A.


Daniel y Fabio.



B.


John y Fabio.



C.


Pedro y Daniel



D.


Pedro y John

Answers

De acuerdo con lo anterior podemos inferir que para los amigos Pedro y John, el incremento de masa muscular se representa por un número decimal periódico mixto.

¿Para cuáles personas el incremento de masa muscular se representa por un número decimal periódico mixto?

El número decimal periódico mixto se refiere a un número decimal que tiene una parte entera, una parte decimal y una parte periódica, que se repite de forma continua.

Al observar los incrementos de masa muscular de los amigos, encontramos que Pedro tiene un incremento de masa muscular de 5/6 kg, lo cual se representa como 0.8(3) kg, donde el "3" se repite de forma continua.

Por otro lado, John tiene un incremento de masa muscular de 16/45 kg, que se representa como 0.3(5) kg, donde el "5" se repite de forma continua.

Entonces, la respuesta correcta es la opción D: Pedro y John.

Nota: Esta pregunta está incompleta. Aquí esta la información completa:
Imagen anexada.

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The formula for simple interest is I=Prt, where I is the interest earned, P is the principal, r is the interest rate and tt is the number of years. Solve the formula for tt in terms of P, I and r

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This equation allows you to calculate the number of years (t) based on the principal (P), interest earned (I), and interest rate (r) for simple interest calculations.

To solve the formula I = Prt for t in terms of P, I, and r, we can rearrange the equation to isolate t.

Starting with the original formula:

I = Prt

Dividing both sides by Pr:

I/Pr = (Prt)/Pr

Simplifying:

I/Pr = t

Therefore, t = I/Pr.

In terms of P, I, and r, the expression for t would be:

t = I / (P * r)

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Cheer 61 took a $6000 distribution from her rough Ira 20% or $1200 is the distribution of earnings on her contribution the remaining $4800 is the distribution on her base char established the account more than 20 years ago where rough Ira's 1st became available how much of her distribution is taxableChar(61) took a $6000 distribution from her Roth Ira. Twenty percent, or1,200 is a distribution of earnings on her contributions. the remaining $4,800 is a distribution of her basis. char established the account more than 20 years ago, when Roth Iran's first became available. How much of her distribution is taxable?

Answers

To sum up, $1200 of Cheer 61's distribution is taxable while $4800 is not taxable.

Char's $1,200 distribution of earnings is taxable.

Char's $4,800 distribution of her base is not taxable, according to the details given in the question.

To explain further, an individual retirement account (IRA) is a kind of investment account that offers tax benefits for saving for retirement.

When a person contributes to a Roth IRA, the contribution is made with after-tax dollars and grows tax-free.

When the individual takes money out of the account, there are no tax consequences since they have already paid taxes on the contributions. However,

if the individual takes money out before they turn 59 1/2 or haven't held the account for at least five years, there could be tax consequences on the earnings portion of the distribution.

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You have a square piece of aluminum that is 12in x 12in. You apply a pressure of 5 psi to that plate, what is the TOTAL FORCE on the piece of aluminum.

Answers

To find the total force on the piece of aluminum, we need to calculate the pressure exerted on the surface and then multiply it by the area of the aluminum plate.

Given:

Pressure = 5 psi

Dimensions of the aluminum plate = 12in x 12in

First, let's convert the pressure from psi to pounds per square inch (psi to lb/in²). Since 1 psi is equivalent to 1 pound of force exerted per square inch, we can directly use the pressure value.

Pressure = 5 lb/in²

Next, we calculate the area of the aluminum plate. Since it is a square, the area is given by the formula:

Area = side^2

Area = (12in)^2 = 144 in²

Finally, we find the total force by multiplying the pressure by the area:

Total Force = Pressure × Area

Total Force = 5 lb/in² × 144 in²

Total Force = 720 lb

Therefore, the total force exerted on the piece of aluminum is 720 pounds.

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