document.write( "Question 796663: Philip can dry mop a wet basketball court in 45 mins; while James can do the same job in 30 mins. They first worked together on the job for 10 mins and then Philip was transferred to mop another court. How many more mins did it take James to finish dry mopping the court alone? \n" ); document.write( "
Algebra.Com's Answer #481464 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! Philip's rate is ( 1 court ) / ( 45 min ) \n" ); document.write( "James's rate is ( 1 court ) / ( 30 min ) \n" ); document.write( "------------------------------- \n" ); document.write( "What fraction of the court did they finish in 10 min ? \n" ); document.write( "Let \n" ); document.write( " \n" ); document.write( "Multiply both sides by \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "5/9 of the court got mopped \n" ); document.write( "That means 4/9 of the court was left \n" ); document.write( "---------------- \n" ); document.write( "Let \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Multiply both sides by \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "It takes James 13 min and 20 sec to finish \n" ); document.write( "check: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "OK \n" ); document.write( " \n" ); document.write( " |