document.write( "Question 908776: It took a crew 1 h 4 min to row 1 km upstream and back again. If the rate of flow of the stream was 7 km/h, what was the rowing speed of the crew in still water? \n" ); document.write( "
Algebra.Com's Answer #551321 by richwmiller(17219)\"\" \"About 
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x+y=1.0666667,
\n" ); document.write( "x*(r+7)=1,
\n" ); document.write( "y*(r-7)=1
\n" ); document.write( "r=8
\n" ); document.write( "
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