document.write( "Question 443762: It takes Joann 8 hours to do the job alone. Joann and Paulette working together takes 6 hours to do the job. How long will it take Paulette working alone? Give answer in hours and minutes. \n" ); document.write( "
Algebra.Com's Answer #306011 by rwm(914)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "6/8+6/p=1 \n" ); document.write( "It should be obvious that Paulette isn't much help and takes considerably longer to do the job alone since the time was only shortened by 2 hours. \n" ); document.write( "3/4+6/p=1 \n" ); document.write( "6/p=1/4 \n" ); document.write( "24 hrs=p \n" ); document.write( "check\r \n" ); document.write( "\n" ); document.write( "6/8+6/24==1 \n" ); document.write( "3/4+1/4=1 \n" ); document.write( "ok \n" ); document.write( "another way to look at \n" ); document.write( "Joan does 1/8 of the job every hour \n" ); document.write( "so in 6 hours she has done 6/8 of the job \n" ); document.write( "which leaves 2/8 for Paulette \n" ); document.write( "[2/8=6/24] \n" ); document.write( "so in 6 hours Paulette has done \n" ); document.write( "6/p=2/8 \n" ); document.write( "48=2p \n" ); document.write( "24=p \n" ); document.write( " \n" ); document.write( " |