Question

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

Answer 1

Answer:

5

Step-by-step explanation:

Use ratios.

$\frac{3}{48} =\frac{x}{80}$

Solve for x

$x=5$

Answer 2

Answer:

5 hours

Step-by-step 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