document.write( "Question 679448: 12 men can do a job in 8 days. If after 5 days,they are joined by 4 more men, how many more days would they take to finish the job \n" ); document.write( "

Algebra.Com's Answer #421970 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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12 men can do a job in 8 days.
\n" ); document.write( "Find the number of man-days required to do the job
\n" ); document.write( "12*8 = 96 man-days
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\n" ); document.write( "If after 5 days,they are joined by 4 more men, how many more days would they take to finish the job
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\n" ); document.write( "let d = additional days required to complete the job
\n" ); document.write( "8(d+5) + 4d = 96
\n" ); document.write( "8d + 40 + 4d = 96
\n" ); document.write( "12d = 96 - 40
\n" ); document.write( "12d = 56
\n" ); document.write( "d = 56/12
\n" ); document.write( "d = 4 $\"2%2F3\"$ days to finish the job
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\n" ); document.write( "See if that checks out, using decimals
\n" ); document.write( "8(4.67+5) + 4(4.66) =
\n" ); document.write( "77.36 + 18.68 = 96.04 ~ 96 man-hrs \n" ); document.write( "

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