SOLUTION: a boat travels 24 mi upstream in 3hrs. It then takes 3 hrs to go 36 mi downstream. Find speed of boat in still water and the speed of the current. (Using two unknowns, write two eq

Algebra ->  Length-and-distance -> SOLUTION: a boat travels 24 mi upstream in 3hrs. It then takes 3 hrs to go 36 mi downstream. Find speed of boat in still water and the speed of the current. (Using two unknowns, write two eq      Log On


   

Question 115196: a boat travels 24 mi upstream in 3hrs. It then takes 3 hrs to go 36 mi downstream. Find speed of boat in still water and the speed of the current. (Using two unknowns, write two equations and solve.)
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
let b=boat and c=current ___ rate X time = distance

upstream ___ (b-c)*3=24 ___ b-c=8

downstream ___ (b+c)*3=36 ___ b+c=12