SOLUTION: A motorboat travels 300 mi in 6 hours going upstream. It travels 456 mi going downstream in the same amount of time. What is the rate of the boat in still water and what is the rat

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Question 874838: A motorboat travels 300 mi in 6 hours going upstream. It travels 456 mi going downstream in the same amount of time. What is the rate of the boat in still water and what is the rate of the current?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
A motorboat travels m mi in t hours going upstream. It travels n mi going downstream in the same amount of time. What is the rate r of the boat in still water and what is the rate c of the current?

_______________speed________time________distance
upstream_______r-c__________t___________m
downstream_____r+c__________t___________n

Variables to solve are r and c.
System equations to start are %28r-c%29t=m and %28r%2Bc%29t=n.