Question

You and two friends got jobs at stores in the mall. You earn $117.60 for 14 hours of work. Ty earns $148.50 in 18 hours. Kim earns $137.60 in 16 hours. Who has the highest pay rate in dollars per hour?

Answer 1

To answer this we will find out how much each person gets in an hour. To do this we will find the unit rate for each person and then check our work for each person. Then we will compare. Lets do it:-

You:-

117.60 ÷ 14 = 8.40
you earn $8.40 per hour.

CHECK OUR WORK:-

8.40 × 14 = 117.60
We were RIGHT!! 

Ty:-

148.50 ÷ 18 = 8.25
Ty earns $8.25 per hour.

CHECK OUR WORK:-

8.25 × 18 = 148.50
We were RIGHT!!! 

Kim:-

137.60 ÷ 16 = 8.60
Kim earns $8.60 per hour.

CHECK OUR WORK:-

8.60 × 16 = 137.60
We were RIGHT!!!

Money each person earns per hour:-

You:- $8.40
Ty:- $8.25
Kim:- $8.60

So, Kim has the highest pay rate in dollars per hour ($8.60).

Hope I helped ya!!