SOLUTION: Upstream, downstream. Junior�s boat will go 15 miles per hour in still water. If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, the

Question 201087: Upstream, downstream. Junior�s boat will go 15 miles per
hour in still water. If he can go 12 miles downstream in the
same amount of time as it takes to go 9 miles upstream,
then what is the speed of the current?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = speed of current
Let = speed of boat in still water
Let = time for both trips in hrs
given:
mi/hr

-------------------

Add the equations

hrs
And, since

mi/hr answer
check:

and

close enough

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