document.write( "Question 97698: 3 laps is 5/8 of a mile. If he runs 3 miles, how many laps does he need to run? \n" ); document.write( "
Algebra.Com's Answer #71090 by tutorcecilia(2152)\"\" \"About 
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3 laps/.0625 miles = x laps/3miles [change 5/8 to a decimal by dividing]
\n" ); document.write( "(3 laps)(3 miles)=(x laps) (0.625 miles) [set up a ratio relationship and cross-multiply]
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\n" ); document.write( "9=0.625x
\n" ); document.write( "9/0.625=0.625x/0.625 [divide each side by 0.625 miles)
\n" ); document.write( "14.4 laps =x
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\n" ); document.write( "Checking:
\n" ); document.write( "3 laps/0.0625 miles = 14.4 laps/3 miles [divide each side]
\n" ); document.write( "4.8=4.8 [checks out]\r
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