document.write( "Question 1080273: Marcus and Tony work for​ Lombardo's Pipe and Concrete. Mr. Lombardo is preparing an estimate for a customer. He knows that Marcus lays a slab of concrete in 9 hours. Tony lays the same size slab in 6 hours. If both work on the job and the cost of labor is $ 49.00per​ hour, decide what the labor estimate should be. \n" ); document.write( "
Algebra.Com's Answer #843887 by mananth(16946)\"\" \"About 
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Combined rate per hour of job done *cost /hour = estimate\r
\n" ); document.write( "\n" ); document.write( "combined rate = 1/6+1/9 = 5/18
\n" ); document.write( "Time taken = 1/(5/18)= 18/5 hours\r
\n" ); document.write( "\n" ); document.write( "(18/5) *49= 176.40\r
\n" ); document.write( "\n" ); document.write( "Estimate for the job should be $176.40 for labor
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