Asked by Anonymous

A person rowed her boat upstream a distance of 45

mi and then rowed back to the starting point. The total time of the trip was 14

hours. If the rate of the current was 2

​mph, find the average speed of the boat in still water.

Answers

Answered by Steve
since time = distance/speed,

45/(x-2) + 45/(x+2) = 14
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