SOLUTION: If the rate of the boat in still water is 21 mph, and the rate of the current of a river is x mph, what is the rate of the boat going downstream (that is, with the current, which s
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Question 1030644: If the rate of the boat in still water is 21 mph, and the rate of the current of a river is x mph, what is the rate of the boat going downstream (that is, with the current, which speeds the boat up)? Answer by fractalier(6550) (Show Source):
