SOLUTION: tim roll is boat 36 miles upstream in 3 hours. it takes him 2 hours to return downstream.find his speed in still water and the speed of the current.

Algebra ->  Rectangles -> SOLUTION: tim roll is boat 36 miles upstream in 3 hours. it takes him 2 hours to return downstream.find his speed in still water and the speed of the current.       Log On


   

Question 224149: tim roll is boat 36 miles upstream in 3 hours. it takes him 2 hours to return downstream.find his speed in still water and the speed of the current.
Found 2 solutions by checkley77, Alan3354:
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
D=RT OR R=D/T
R=36/3=12 MPH UPSTREAM.
R=36/2=18 MPH DOWNSTREAM.
(18-12)/2=6/2=3 THE SPEED OF THE CURRENT.
18-3=15 MPH FOR THE BOAT IN STILL WATER.
12+3=15 DITTO.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Checkley did the problem already.
I think Tim rowed his boat. It's hard to roll a boat on water.