SOLUTION: A Mississippi riverboat can travel 40 kilometers downstream in 3 hours and can make the return trip in 6 hours. Find the speed of the boat in still water.

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Question 604605: A Mississippi riverboat can travel 40 kilometers downstream in 3 hours and can make the return trip in 6 hours. Find the speed of the boat in still water.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
b + c = 40/3

b - c = 40/6

add the equations to eliminate c