document.write( "Question 929435: A man can ride his bike 18 miles in the same time it takes him to run 6 miles. He can ride his bike 10 mph faster than he can run. How fast can he ride his bike? \n" ); document.write( "
Algebra.Com's Answer #564358 by MathTherapy(10552)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "A man can ride his bike 18 miles in the same time it takes him to run 6 miles. He can ride his bike 10 mph faster than he can run. How fast can he ride his bike?
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Let biking speed be S
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document.write( "Then running speed is: S – 10
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document.write( "Therefore, \"18%2FS+=+6%2F%28S+-+10%29\"
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document.write( "18(S – 10) = 6S -------- Cross-multiplying
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document.write( "18S – 180 = 6S
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document.write( "18S – 6S = 180
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document.write( "12S = 180
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document.write( "S, or biking speed = \"180%2F12\", or \"highlight_green%2815%29\" mph
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