Question

Debra served 48 people in 3 hours. At this rate how many hours will it take to serve 80 people?

Answer 1

5 hours

Explanation:

Make a proportion

She served 48 people in 3 hours, and served 80 people in x hours

48/3=80/x

Cross multiply

48*x=80*3

48x=240

Divide both sides by 48 to isolate x

x=5

So, it will take 5 hours to serve 80 people

Answer 2

5

Explanation:

Use ratios.

`(3)/(48) =(x)/(80)`

Solve for x

`x=5`