document.write( "Question 751558: If BIll can clean the garage in 4 hours and John can clean the same garage in 3 hours, how many hours will it take them to clean the garage if they work together? \n" ); document.write( "
Algebra.Com's Answer #457284 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! If BIll can clean the garage in 4 hours and John can clean the same garage in 3 hours, how many hours will it take them to clean the garage if they work together? \n" ); document.write( "--- \n" ); document.write( "Bill rate: 1/4 job/hr \n" ); document.write( "John rate: 1/3 job/hr \n" ); document.write( "together rate: 1/x job/hr \n" ); document.write( "--------- \n" ); document.write( "Equation: \n" ); document.write( "rate + rate = together rate \n" ); document.write( "1/4 + 1/3 = 1/x \n" ); document.write( "3x + 4x = 12 \n" ); document.write( "7x = 12 \n" ); document.write( "x = 12/7 = 1 5/12 = 1hr 25 min (time to do the job together) \n" ); document.write( "---------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=================== \n" ); document.write( " |