SOLUTION: Meg rowed her boat upstream a distance of 21 miles and then rowed back to the starting point the total time of the trip was 10 hours. If the rate of the current was 2mph, find th

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Question 904259: Meg rowed her boat upstream a distance of 21 miles and then rowed back to the starting point the total time of the trip was 10 hours.
If the rate of the current was 2mph, find the average speed of the boat relative to the water
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
r*t=d
a+b=10
(r+2)*a=21
(r-2)*b=21
a = 3, b = 7, r = 5