SOLUTION: a kayaker goes 12 mph in still water. if the river's current is 5 mph how long will it take to go 20 miles upstream?
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Question 542706: a kayaker goes 12 mph in still water. if the river's current is 5 mph how long will it take to go 20 miles upstream?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = speed of current
Let = kayaker's speed in still water
Let = time to go 20 miles upstream
= speed going upstream
given:
mi/hr
mi/hr
-----------
hrs
min
It will take the kayaker 2 hrs and 51 min
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