document.write( "Question 407757: A woman can bicycle 28 miles in the same time as it takes her to walk 8 miles. She can ride 10 mph faster than she can walk. How fast can she walk?
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Algebra.Com's Answer #287360 by mananth(16946)![]() ![]() You can put this solution on YOUR website! walk rate = x mph \n" ); document.write( "cycling rate = x+10 mph\r \n" ); document.write( "\n" ); document.write( "walking distance = 8 miles \n" ); document.write( "cycling distance = 28 miles \n" ); document.write( ".. \n" ); document.write( "t= d/r \n" ); document.write( ".. \n" ); document.write( "time riding = time walking\r \n" ); document.write( "\n" ); document.write( "8/x=28/(x+10) \n" ); document.write( "cross multiply\r \n" ); document.write( "\n" ); document.write( "8(x+10)=28x \n" ); document.write( "8x+80=28x \n" ); document.write( "28x-8x=80 \n" ); document.write( "20x=80 \n" ); document.write( "/20 \n" ); document.write( "x= 4 walking rate \n" ); document.write( "cycling rate = 4+10 =14 mph \n" ); document.write( " \n" ); document.write( " |