SOLUTION: A boat traveling against the current moves 21 kilometers per hour. Traveling at three fifths its speed with currentˏ it moves 27 kilometers per hour. Find the boat's speed and

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Question 904457: A boat traveling against the current moves 21 kilometers per hour. Traveling at three fifths its speed with currentˏ it moves 27 kilometers per hour. Find the boat's speed and the rate of the current
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
r - c = 21kmph
(3/5)r + c = 27knph
(8/5)r = 48
r = 48(5/8)
r = 30mph and c = 9knph
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