How should I answer this 7th grade math question?

Question

CharlesCharles

is going camping with

hisis

family. Their campsite is

five eighths58

mile away. They walk at a steady speed of

2 and one half212

mi divided by hmi/h.

How many minutes will it take them to get to the​ campsite?

Answer 1

distance = rate * time

time = distance / rate

distance = 5/8 miles

rate = 5/2 mph

5/8 divided by 5/2 = 5/8 * 2/5 = 10/40 = 1/4 = 15 minutes