SOLUTION: The boat travelled 336 km downstream and back. The trip downstream took 12 hours. The trip back took 14 hours. What is the speed of the boat in still water? What is the speed of th

Algebra ->  Matrices-and-determiminant -> SOLUTION: The boat travelled 336 km downstream and back. The trip downstream took 12 hours. The trip back took 14 hours. What is the speed of the boat in still water? What is the speed of th      Log On


   

Question 1132763: The boat travelled 336 km downstream and back. The trip downstream took 12 hours. The trip back took 14 hours. What is the speed of the boat in still water? What is the speed of the current?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
r and c
boat speed and current speed

system%28r%2Bc=336%2F12%2Cr-c=336%2F14%29

system%28r%2Bc=28%2Cr-c=24%29
Easily for done with Elimination Method...


system%28r=26%2Cc=2%29