document.write( "Question 1175777: Inverse variation, Solve following problem\r
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document.write( "1. The time t required to do a job varies inversely as the number of people p working. It takes 5 hours for 7 bricklayers to complete a certain job. How long will it take for 10 bricklayers to complete the job? \n" );
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Algebra.Com's Answer #801455 by math_helper(2461)![]() ![]() You can put this solution on YOUR website! Each bricklayer does 1/(5*7) = 1/35 job per hour (so one bricklayer would take 35hrs to do the job on their own) \n" ); document.write( "Knowing this, 10 bricklayers can do 10/35 job per hour \n" ); document.write( "Thus, the total time for 10 bricklayers to do 1 job is: \n" ); document.write( "1/(10/35) = 35/10 = 3.5hrs \n" ); document.write( " |