Glencoe Math: Course 2, Volume 1
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Glencoe Math: Course 2, Volume 1 View details
3. Convert Unit Rates
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Exercise 25 Page 32

What operations can be applied to both 2 hours and $ 22 to get 5 hours and the payment for 5 hours?

Payment $ 22 Ă· 2 * 5 $ 55
Hours 2 Ă· 2 * 5 5
Practice makes perfect

We want to figure out how much the employer charges for 5 hours. We are asked to do this by using the given table. Let's take a look at the table!

Payment $ 22
Hours 2 5

The first column represents the situation for 2 hours of work. We need to complete the third column so that it represents the situation for 5 hours of work. We can use the second column to write the operations that can be applied to both 2 hours and $ 22 to get 5 hours and the payment for 5 hours. Notice that we can get 5 from to 2 by dividing 2 by 2 and multiplying the result by 5.

Payment $ 22
Hours 2 Ă· 2 * 5 2 Ă· 2 * 5 = 1 * 5 = 5

Let's apply these operations to $ 22 to get the payment for 5 hours.

Payment $ 22 Ă· 2 * 5 $ 22 Ă· 2 * 5= $ 11 * 5 = $ 55
Hours 2 Ă· 2 * 5 2 Ă· 2 * 5 = 1 * 5 = 5

We found that the employer charges $ 55 for 5 hours.