SOLUTION: A swimmer can swim at twice the speed of the prevailing tide. If it takes her 4 minutes to swim round trip to a buoy, how long will it take her to swim the identical trip in still
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Question 274687: A swimmer can swim at twice the speed of the prevailing tide. If it takes her 4 minutes to swim round trip to a buoy, how long will it take her to swim the identical trip in still water?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
d = distance to buoy ___ 2p = swim rate
(d / p) + (d / (3p)) = 4
(3d / 3p) + (d / (3p)) = 4
(4d) / (3p) = 4
(2d) / (3p) = 2
(2d) / (2p) = 3
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