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)![]() ![]() You can put this solution on YOUR website! \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? \n" ); document.write( " Brian's time, alone:\n" ); document.write( " |