document.write( "Question 1159607: Katherine leaves home for school, riding her bicycle at a rate of 12miles/hr. Twenty minutes after she leaves, her mother sees Katherine's English paper on her bed and leaves to bring it to her. If her mother drives at 36miles/hr, how far must she drive before she reaches Katherine? \n" ); document.write( "

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Katherine leaves home for school, riding her bicycle at a rate of 12miles/hr. Twenty minutes after she leaves, her mother sees Katherine's English paper on her bed and leaves to bring it to her. If her mother drives at 36miles/hr, how far must she drive before she reaches Katherine?
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Let distance she should drive, be D
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document.write( "With , we get the following TIME equation: 
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document.write( "3D - 12 = D ------ Multiplying by LCD, 36
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document.write( "   - 12 = D - 3D
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document.write( "   - 12 = - 2D
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document.write( "Distance to be driven, or  \n" );
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