Solve.
-From a point on a river, two boats are driven in opposite directions, one at 9 miles per hour and the other at 13 miles per hour. In how many hours will they be 44 miles apart?
A)1 hour
B)2 hours
C)4 hours
D)3 hours

Question

Quizplus · Accepted Answer

The relative speed of the two boats is the sum of their speeds, which is 9 + 13 = 22 miles per hour. To find the time it takes for them to be 44 miles apart, divide the distance by the relative speed: 44 miles ÷ 22 miles per hour = 2 hours.

Solve. -From a Point on a River, Two Boats Are Driven