SOLUTION: Rusty has a boat goes 12 mi. an hour. Find the current speed of the river if he can go 3 mi. upstream in the same time as he goes 5 mi. downstream.
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Question 584998: Rusty has a boat goes 12 mi. an hour. Find the current speed of the river if he can go 3 mi. upstream in the same time as he goes 5 mi. downstream.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
r*t=d
(12-c)*t=3
(12+c)*t=5
c=3
t=1/3
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