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August 27, 2014

August 27, 2014

Posted by **leila** on Wednesday, September 3, 2008 at 9:34pm.

- math -
**camiron**, Wednesday, September 3, 2008 at 9:57pmat what speed does current is in relative to water

- math -
**ZZ**, Wednesday, September 3, 2008 at 11:54pmlet spped of current be X, when the boat goes upstream, the actual speed of boat= speed of boat-speed of current;when the boat goes downstream, the speed =speed of boat+speed of current

distance=speed x time

upstream: (16-X)x 1/3

downstream:(16+X)x1/4

since the total distance of the trip doesnt change,

(16-X)x 1/3=(16+X)x1/4

solve for x,

ps:the speed of boat is 16miles/hour,

dont forget to convert minutes into hour

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