document.write( "Question 602789: A racing team can paddle their canoe 11 miles downstream in the same time it takes to paddle 3 miles upstream in a 2 mile per hour current. How fast can they paddle in still water? \n" ); document.write( "
Algebra.Com's Answer #380454 by flame8855(424)\"\" \"About 
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let x be the normal speed
\n" ); document.write( "c is the speed of the current
\n" ); document.write( "speed downstream : x+c
\n" ); document.write( "speed upstream : x-c
\n" ); document.write( "speed = distance/time
\n" ); document.write( "c = 2 mph
\n" ); document.write( "speed downstream = distance /time = x+2 = 11/t
\n" ); document.write( "t= 11/(x+2)
\n" ); document.write( "speed upstream = x-2 = 3/t
\n" ); document.write( "t= 3/(x-2)
\n" ); document.write( "t=t
\n" ); document.write( "so x = 7/2 = 3.5 mph in still water\r
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