document.write( "Question 299434: A woman can ride a bicycle 25 miles in the same time that it takes her to walk 5 miles. if she can ride 8 mph faster than she walk, how fast can she walk? \n" ); document.write( "
Algebra.Com's Answer #215148 by Greenfinch(383)![]() ![]() You can put this solution on YOUR website! Let her walk at X mph, She therefore cycles at X + 8 mph \n" ); document.write( "so 25/(X + 8) = 5/X \n" ); document.write( "25X = 5X + 40 \n" ); document.write( "20X = 40 \n" ); document.write( "X = 2, so she walks at 2 mph and cycles at 10 mph \n" ); document.write( "Check - 25 miles at 10 mph takes 2.5 hours \n" ); document.write( "walking 5 miles at 2 mph also takes 2.5 hours \n" ); document.write( " |