document.write( "Question 1063895: Jen does one-quarter of a job in 3 hours. If Nicky works 2 hours more than Jen, she can finish one-sixth of the job. How long does it take to do the job if they work together? \n" ); document.write( "
Algebra.Com's Answer #678975 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Jen does one-quarter of a job in 3 hours. \n" ); document.write( "therefore: 4 * 3 = 12 hrs to complete the job \n" ); document.write( ": \n" ); document.write( " If Nicky works 2 hours more than Jen, she can finish one-sixth of the job. \n" ); document.write( "Jen works 3 hrs, therefore N works 5hr, therefore N: \n" ); document.write( "6 * 5 = 30 hrs to complete the job \n" ); document.write( ": \n" ); document.write( "How long does it take to do the job if they work together? \n" ); document.write( "let t = time required working together \n" ); document.write( "let completed job = 1 \n" ); document.write( "A shared work equation, each does a fraction of the job. \n" ); document.write( "The two fractions add up 1 \n" ); document.write( " \n" ); document.write( "multiply equation by 60, cancel the denominators \n" ); document.write( "5t + 2t = 60 \n" ); document.write( "7t = 60 \n" ); document.write( "t = 60/7 \n" ); document.write( "t = 8.57 hrs working together \n" ); document.write( " |