document.write( "Question 331861: While moving with the current of the water, Sally can kayak across 4 miles of a lake in the same amount of time it takes her to travel 3 miles against the current. If the current is found to be .5 mph, find Sally's rate in still water.\r
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document.write( "I know the formula D=RT but I am stumped!! \n" );
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Algebra.Com's Answer #237907 by scott8148(6628) You can put this solution on YOUR website! how about D/R=T ___ the times are the same\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4/(s + c) = 3/(s - c) ___ c = .5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "\"cross\" multiplying ___ 4s - 2 = 3s + 1.5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "s = 3.5 \n" ); document.write( " |