SOLUTION: Use a system of linear equations to solve the exercise. Julie and Eric row their boat (at a constant speed) 55 miles downstream for 5 hours, helped by the current. Rowing at the

Question 227922: Use a system of linear equations to solve the exercise.
Julie and Eric row their boat (at a constant speed) 55 miles downstream for 5 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 11 hours. Find the rate of the current.

Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
55/5=11 MPH IS THE SPEED DOWNSTREAM.
55/11=5 MPH IS THE SPEED UPSTREAM.
(11-5)/2=16/2=8 MPH IS THE BOAT SPEED IN STILL WATER.
PROOF.
8+3=11 MPH. FOR THE CURRENT DOWN STREAM
8-3=5 MPH. DITTO.
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