SOLUTION: A rowing team rows at 8km/h in resting water. It takes 16 hours to row 39 kilometres down river and 39 kilometres return. Find the speed of the current. Find how long it takes to r
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Question 982997: A rowing team rows at 8km/h in resting water. It takes 16 hours to row 39 kilometres down river and 39 kilometres return. Find the speed of the current. Find how long it takes to row against the current.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the speed of the current. The net speed downstream is then 
and the net speed upstream is 
. Let 
represent the time it takes to row upstream, then 
is the time it takes to row downstream. Since distance equals rate times time:
t\ =\ 39)
and
(16\ -\ t)\ =\ 39)
Solve the 2X2 system for and
John
My calculator said it, I believe it, that settles it
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