document.write( "Question 270393: the water current is 2 miles per hour . a canoe can travel 6 mile downstream with the current, in the same amount of time it travel 2 miles upstream against the current. what is the canoe rate in still water? \n" ); document.write( "
Algebra.Com's Answer #198158 by scott8148(6628)\"\" \"About 
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t = d / r ___ times are the same, upstream and downstream\r
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\n" ); document.write( "\n" ); document.write( "6 / (c + 2) = 2 / (c - 2)\r
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\n" ); document.write( "\n" ); document.write( "\"cross\" multiplying ___ 6c - 12 = 2c + 4\r
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\n" ); document.write( "\n" ); document.write( "4c = 16 ___ c = 4
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