SOLUTION: a stream flows at a rate of 4 mph in still water. A boat travels 70mi round trip downstream and back in a total of 6 hours. what is the speed of the boat in still water?
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Question 286896: a stream flows at a rate of 4 mph in still water. A boat travels 70mi round trip downstream and back in a total of 6 hours. what is the speed of the boat in still water?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
This makes no sense, "a stream flows at a rate of 4 mph in still water."
Make up your mind. Is the stream flowing or is it still!
x+y=6,
(r+4)*x=35,
(r-4)*y=35
r=12.9 mph in still water
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