SOLUTION: Kellen​'s boat travels 20 mph. Find the rate of the river current if she can travel 6 mi upstream in the same amount of time she can go 10 mi downstream.​ (Let x=the ra

Algebra ->  Systems-of-equations -> SOLUTION: Kellen​'s boat travels 20 mph. Find the rate of the river current if she can travel 6 mi upstream in the same amount of time she can go 10 mi downstream.​ (Let x=the ra      Log On


   



Question 1093171: Kellen​'s boat travels 20 mph. Find the rate of the river current if she can travel 6 mi upstream in the same amount of time she can go 10 mi downstream.​ (Let x=the rate of the​ current.) The rate of the river current is what?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
If x is the rate of the current, then:
6/20-x=10/20+x (being inversely proportional)
200-10x=120+6x
80=16x
x=5
The current is 5 mph. ☺☺☺☺