document.write( "Question 1028427: Luis can drive 3 times as fast as Carlos can ride his bicycle. If it takes Carlos 2 hours longer than Luis to travel 15 miles, how fast can Carlos ride his bicycle? \n" ); document.write( "

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\n" ); document.write( "Luis can drive 3 times as fast as Carlos can ride his bicycle. If it takes Carlos 2 hours longer than Luis to travel 15 miles, how fast can Carlos ride his bicycle?
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Let Carlos’ speed be S
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document.write( "Then Luis’ speed = 3S
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document.write( "We then get the following TIME equation: 
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document.write( "45 = 15 + 6S ------- Multiplying by LCD, 3S
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document.write( "45 – 15 = 6S
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document.write( "30 = 6S
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document.write( "S, or Carlos’ speed = , or  \n" );
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