document.write( "Question 1135736: In still water, a boat averages 18 mile per hour. It takes the same amount of time to travel 33 miles downstream, with the current, as 21 miles upstream, against the current. What is the rate of the waters’s current? \n" ); document.write( "
Algebra.Com's Answer #753394 by josgarithmetic(39627)\"\" \"About 
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c, speed of river current\r
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\n" ); document.write( "Solve for c.
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