SOLUTION: A motorboat traveling with the current went 105 mi in 5 h. Traveling against the current, it took 7 h to travel the same distance. Find the rate of the boat in calm water and the

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Question 822367:
A motorboat traveling with the current went 105 mi in 5 h. Traveling against the current, it took 7 h to travel the same distance. Find the rate of the boat in calm water and the rate of the current.
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
r is boat without current
c is current

r+c is WITH the current and r-c is AGAINST the current.

%28r%2Bc%29%2A5=105 and %28r-c%29%2A7=105 is the symbolic translation from your description. Two equations in two unknowns. Enough?