document.write( "Question 908281: \"Find the time for two people working together to complete a task if it takes them 4.5 hours and 6 hours individually.\" \r
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document.write( "I tried working this problem out, but I had a hard time. I checked the solutions manual, but they used a random 27 in the equation somehow. Not I am just super confused! Thanks for your help! \n" );
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Algebra.Com's Answer #550937 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! \"Find the time for two people working together to complete a task if it takes them 4.5 hours and 6 hours individually.\" \n" ); document.write( ": \n" ); document.write( "Let t = time to complete the job working together \n" ); document.write( "Let the completed job = 1 \n" ); document.write( ": \n" ); document.write( "Each will do a fraction of the job, the two fractions add up to 1 \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "multiply by 36, get rid of the denominators \n" ); document.write( "36* \n" ); document.write( "Cancel the denominators and you have \n" ); document.write( "8t + 6t = 36 \n" ); document.write( "14t = 36 \n" ); document.write( "t= 36/14 \n" ); document.write( "t = 2.57 hrs working together; that's, 2 + .57(60) = 2 hr 34.2 min \n" ); document.write( " |