SOLUTION: in still water, a boat averages 15 miles per hour. it takes the same amount of time to travel 20 miles downstream, with the current, as 10 miles upstream, against the current. what

Algebra ->  Rational-functions -> SOLUTION: in still water, a boat averages 15 miles per hour. it takes the same amount of time to travel 20 miles downstream, with the current, as 10 miles upstream, against the current. what      Log On


   

Question 992033: in still water, a boat averages 15 miles per hour. it takes the same amount of time to travel 20 miles downstream, with the current, as 10 miles upstream, against the current. what is the rate of the waters current?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
C=rate of current
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20%2F%2815%2BC%29=10%2F%2815-C%29
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20%2815-C%29=10%2815%2BC%29
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300-20C=150%2B10C
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150=30C
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5=C
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ANSWER: The rate of the current is 5 miles per hour.