Two people start walking at the same time in the same direction. One person walks at 8 mph and the other person walks at 2 mph.

Question

svp [43]

3 years ago

12

Two people start walking at the same time in the same direction. One person walks at 8 mph and the other person walks at 2 mph.

In how many hours will they be 4.5 miles apart?

Mathematics

1 answer:

schepotkina [342] · Answer 1 · 2021-12-02T14:25:29+03:00

schepotkina [342]3 years ago

7 0

Time = distance/speed

The distance between the walkers increases at the rate of (8 mph) -(2 mph) = 6 mph. That distance will be 4.5 mi after ...
(4.5 mi)/(6 mi/h) = 4.5/6 h = 3/4 h

In 3/4 hour they will be 4.5 miles apart.