document.write( "Question 1209001: Suppose that you have entered an 87-mile biathlon that consists of a run and a bicycle race. During your run, your average speed is 6 miles per hour, and during your bicycle race, your average speed is 25 miles per hour. You finish the race in 5 hours. What is the distance of the run? What is the distance of the bicycle race? \n" ); document.write( "
Algebra.Com's Answer #847579 by timofer(105)\"\" \"About 
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If using RT=D rule then also T=D/R.\r
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\n" ); document.write( "\n" ); document.write( "If letting x equal to distance done by running then\r
\n" ); document.write( "\n" ); document.write( "\"x%2F6%2B%2887-x%29%2F25=5\"\r
\n" ); document.write( "\n" ); document.write( "common denominator is 150.\r
\n" ); document.write( "\n" ); document.write( "\"150%28x%2F6%2B%2887-x%29%2F25%29=150%2A5\"\r
\n" ); document.write( "\n" ); document.write( "\"25x%2B6%2A87-6x=750\"\r
\n" ); document.write( "\n" ); document.write( "\"%2825-6%29x=750-522\"\r
\n" ); document.write( "\n" ); document.write( "\"19x=750-522\"\r
\n" ); document.write( "\n" ); document.write( "\"x=228%2F19\"\r
\n" ); document.write( "\n" ); document.write( "\"x=12\"----------the distance ran
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