SOLUTION: A cruise boat travels 72 miles downstream in 4 hours and returns upstream in 6 hours. Find the rate of the stream

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A cruise boat travels 72 miles downstream in 4 hours and returns upstream in 6 hours. Find the rate of the stream      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 632805: A cruise boat travels 72 miles downstream in 4 hours and returns upstream in 6 hours. Find the rate of the stream
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
r*t=d
(r+c)*4=72;
(r-c)*6=72
c=3 r=15