document.write( "Question 619206: an employment agency specializing in temporary help pays $129 per day and general laborers $82 per day. if thirty-one people were hired and the payrolll was $3952. how many heavy operators were employed? how many laborers? \n" ); document.write( "
Algebra.Com's Answer #389540 by ankor@dixie-net.com(22740)\"\" \"About 
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an employment agency specializing in temporary help pays $129 per day and general laborers $82 per day.
\n" ); document.write( " if thirty-one people were hired and the payroll was $3952.
\n" ); document.write( " how many heavy operators were employed? how many laborers?
\n" ); document.write( ":
\n" ); document.write( "Let a = no. of operators
\n" ); document.write( "Let b = no. of laborers
\n" ); document.write( ":
\n" ); document.write( "Total people equation:
\n" ); document.write( "a + b = 31
\n" ); document.write( "b = (31-a), we can use this form for substitution
\n" ); document.write( ":
\n" ); document.write( "Total payroll equation
\n" ); document.write( "129a + 82b = 3952
\n" ); document.write( "substitute (31-a) for b
\n" ); document.write( "129a + 82(31-a) = 3952
\n" ); document.write( "129a + 2542 - 82a = 3952
\n" ); document.write( "129a - 82a = 3952 - 2542
\n" ); document.write( "47a = 1410
\n" ); document.write( "a = 1410/47
\n" ); document.write( "a = 30 operators
\n" ); document.write( "then
\n" ); document.write( "31 - 30 = 1 laborer
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "See if that checks out
\n" ); document.write( "129(30) + 82(1) =
\n" ); document.write( "3870 + 82 = 3952, seems to be correct \n" ); document.write( "
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