document.write( "Question 1181320: Working together, Adam and Chris can reseal a driveway in
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document.write( "6 hours. Working alone, Adam can reseal the driveway in 15
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document.write( "hours. How long would it take Chris, working alone,to reseal the
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Algebra.Com's Answer #811196 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Working together, Adam and Chris can reseal a driveway in \n" ); document.write( "6 hours. \n" ); document.write( "Together they can reseal 1/6 of the driveway in 1 hour\r \n" ); document.write( "\n" ); document.write( "Working alone, Adam can reseal the driveway in 15 \n" ); document.write( "Adam can reseal1/15 of the driveway in 1 hour\r \n" ); document.write( "\n" ); document.write( "Let Chris take x hours to complete the job alone \n" ); document.write( "He does 1/x of the job in 1 hour\r \n" ); document.write( "\n" ); document.write( "1/15 + 1/x = 1/6\r \n" ); document.write( "\n" ); document.write( "1/x = 1/6 -1/15 \n" ); document.write( "1/x = 9/90 = 1/10\r \n" ); document.write( "\n" ); document.write( "x= 10\r \n" ); document.write( "\n" ); document.write( "Chris take 10 hours to complete the job alone \n" ); document.write( " \n" ); document.write( " |