document.write( "Question 1021285: It takes Brian 15 hours longer to model a car than it takes John. If they work together, they can build the model car in 4 hours. How long does it take Brian to model the car on his own? \n" ); document.write( "
Algebra.Com's Answer #637059 by MathTherapy(10555)\"\" \"About 
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\n" ); document.write( "It takes Brian 15 hours longer to model a car than it takes John. If they work together, they can build the model car in 4 hours. How long does it take Brian to model the car on his own?
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Brian's time, alone: \"highlight_green%28matrix%281%2C2%2C20%2C+hours%29%29\" \n" );
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