document.write( "Question 1020164: As part of her training routine for basketball, Shaylle alternates between cycling and running for exercise. She cycles at a rate of 18 mph and runs at a rate of 8 mph. If she spends 9.5 hours exercising and covers a total of 131 miles, how much time did she spend on each exercise? \n" ); document.write( "

Algebra.Com's Answer #648840 by jorel555(1290) $\"\"$ $\"About$

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This is actually a problem of linear equations----Shaylie spends a total amount of time of 9.5 hours exercising. Thus:
\n" ); document.write( "x+y=9.5
\n" ); document.write( "And her miles covered is:
\n" ); document.write( "18x+8y=131
\n" ); document.write( "So:
\n" ); document.write( "18x+8y=131
\n" ); document.write( "8x+8y=76
\n" ); document.write( "10x=55
\n" ); document.write( "x=5.5
\n" ); document.write( "y=4
\n" ); document.write( "Thus she spends 5.5 hours cycling, and 4 hours running!!!!!!!! \n" ); document.write( "

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