document.write( "Question 633087: The cost of labors varies directly with the number of workers and the number of days worked. If 16 people work 5 days for $9,600, how many days can 9 people work to earn $6,480? \n" ); document.write( "
Algebra.Com's Answer #398660 by richwmiller(17219)\"\" \"About 
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16*5=80 man days
\n" ); document.write( "9600/80=960/8=120 dollars per man day
\n" ); document.write( "6480/120=54
\n" ); document.write( "54/9=6 days for 9 people to earn 6480 at a rate of $120 per day
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