SOLUTION: a boat travels upstream for 156 miles in 3 hours and returns in 2 hours traveling downstream in a local stream of water. What is the rate of the boat in still water and the rate of

Question 1048584: a boat travels upstream for 156 miles in 3 hours and returns in 2 hours traveling downstream in a local stream of water. What is the rate of the boat in still water and the rate of the current?
Found 2 solutions by josgarithmetic, ewatrrr:
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!

Sometimes creating a data table helps. Notice that upstream speed is smaller than downstream speed. Both r and c are positive numbers. You can solve the system (expecting that just setting up the system was the trouble, and not handling the algebra).
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
r + c = 78mph
r - c = 52mph
2r = 130mph
r = 65mph
c = 13mph
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