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Kazeer [188]
3 years ago
11

Ben has a part time job at the fun station. Suppose he worked 13.5 hours last week and $81. How much does Ben earn per hour

Mathematics
2 answers:
scoundrel [369]3 years ago
8 0

To get the answer, you will just use this operation: Division.
Let's divide it. 81 ÷ 13.5 = 6.

So, the answer is
Ben earns $6 per hour at the fun station.

azamat3 years ago
3 0

Answer:  Ben earn $6 per hour.

Step-by-step explanation:  Given that Ben has a part time job at the fun station. He worked 13.5 hours last week and $81.

We are to find the earning of Ben per hour.

We will be using the UNITARY method to solve the problem.

We have

Earning of Ben in 13.5 hours = $81.

Therefore, the earning of Ben in 1 hour is given by

\$\dfrac{81}{13.5}=\$6.

Thus, Ben earn $6 per hour.

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The average heights of x number of girls and 15 boys is 123. if the average heights of boys is 125 and that of girls is 120.find
mamaluj [8]

Answer:

x = 10. In other words, there number of girls is 10.

Step-by-step explanation:

The average of a number of measurements is equal to the sum of these measurements over the number of measurements.

\displaystyle \text{Average} = \frac{\text{Sum of measurements}}{\text{Number of measurements}}.

Rewrite to obtain:

\begin{aligned}& \text{Sum of measurements}= (\text{Number of measurements}) \times (\text{Average}) \end{aligned}.

For this question:

\begin{aligned}& \text{Sum of heights of boys} \\ &= (\text{Number of boys}) \times (\text{Average height of boys}) \\ &= 15 \times 125 = 1875\end{aligned}.

\begin{aligned}& \text{Sum of heights of girls} \\ &= (\text{Number of girls}) \times (\text{Average height of girls}) \\ &= x \times 120 = 120\, x\end{aligned}.

Therefore:

\begin{aligned}& \text{Sum of boys and girls} \\ &= \text{Sum of heights of boys} + \text{Sum of heights of girls}\\ &= 1875 + 120\, x\end{aligned}.

On the other hand, there are (15 + x) boys and girls in total. Using the formula for average:

\begin{aligned}& \text{Average height of boys and girls} \\ &= \frac{\text{Sum of heights of boys and girls}}{\text{Number of boys and girls}} \\ &= \frac{1875 + 120\, x}{15 + x}\end{aligned}.

From the question, this average should be equal to 123. In other words:

\displaystyle \frac{1875 + 120\, x}{15 + x} = 123.

Solve this equation for x to obtain:

1875 + 120\, x= 123\, (15 + x).

(123 - 120)\, x = 1875 - 123 \times 15.

x = 10.

In other words, the number of girls here is 10.

5 0
3 years ago
What is the answer to -6-(-2)=
Irina-Kira [14]

Answer:

-4

explanation:

since there is subtraction sign in front of the negative 2 it would change into a positive 2.

-6 + 2 = -4

8 0
3 years ago
Read 2 more answers
Solve X/3 - 2X+1/3 = X-3/5​
iren2701 [21]

Answer:

Answer is 3

Step-by-step explanation:

x/3-2x/1+3 =x-3/5

x/3-x/3 = x-3/5

0=x-3/5

0=x-3

3=x

sothat, x = 3 ans

3 0
3 years ago
PLEASE HELP QUICK! I’ll give brainleist!!!
Fudgin [204]

1. set up the equation which makes these shapes equal, 1/2(2(x+1)) = 1x

2. solve, x+1=x, 1=0

3. since this is impossible, there is no solution and zero answers

5 0
3 years ago
How do I do this ? I need help
Amiraneli [1.4K]

Answer: 40

Step-by-step explanation:

You first start by multiplying 15 times 16 to see how many ounces you have.

15 x 16 = 240

Then you divide it by 6

240/6 is 40

So you can make 40 burgers

8 0
3 years ago
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