SOLUTION: a barge takes 5 hours to move (at a constant rate) down stream for 55 miles, helped by a current of 3 miles per hour. if the barge's engines are set at the same pace, find the time

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: a barge takes 5 hours to move (at a constant rate) down stream for 55 miles, helped by a current of 3 miles per hour. if the barge's engines are set at the same pace, find the time      Log On


   



Question 806723: a barge takes 5 hours to move (at a constant rate) down stream for 55 miles, helped by a current of 3 miles per hour. if the barge's engines are set at the same pace, find the time of its return trip against the current
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(v+3)*5=55
v=8 mph
(8-3)*t=55
5T=55
t=11 hrs