document.write( "Question 32403: a man rode a bike for 12 miles and hiked 8. The total time for the trip was 5 hours. If his rate when he was riding a bike was 10mph faster than his rate walking, what was each rate? \n" ); document.write( "

Algebra.Com's Answer #18882 by Paul(988) $\"\"$ $\"About$

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 X=WALKING SPEED
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document.write( "X+10=RIDING SPEED
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document.write( "Eqaution:
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document.write( "Cross multiply:
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document.write( "12(x)+8(x+10)=5[(x)(x+10)]
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document.write( "a=1, b=6, c=-16
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document.write( "Simplfy:
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document.write( "x=-8 or x=2
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document.write( "remove negative x=2
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document.write( "2+10=12
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document.write( "Hence, his walking speed was 2mph and his bike speed was 12 mph.
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document.write( "Paul. \n" );
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