document.write( "Question 301378: Susan has 92 packages on her truck.
\n" ); document.write( "Some of the packages weigh 32 lbs each,
\n" ); document.write( "and the rest weigh 12 lbs each. If the total
\n" ); document.write( "weight of the packages on the truck is 1604
\n" ); document.write( "lbs, how many of each kind of package is
\n" ); document.write( "on the truck?
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Algebra.Com's Answer #216093 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Let A be the number of 32 lb boxes.
\n" ); document.write( "Let B be the number of 12 lb boxes.
\n" ); document.write( "1.\"A%2BB=92\"
\n" ); document.write( "2.\"32A%2B12B=1604\"
\n" ); document.write( "From eq. 1,
\n" ); document.write( "\"A=92-B\"
\n" ); document.write( "\"32A=2944-32B\"
\n" ); document.write( "Now substitute into eq. 2,
\n" ); document.write( "\"32A%2B12B=1604\"
\n" ); document.write( "\"2944-32B%2B12B=1604\"
\n" ); document.write( "\"-20B=-1340\"
\n" ); document.write( "\"B=67\"
\n" ); document.write( "Then use either equation to solve for A.\r
\n" ); document.write( "\n" ); document.write( "\"A=92-B\"
\n" ); document.write( "\"A=92-67\"
\n" ); document.write( "\"A=25\"
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "There are twenty-five 32 lb boxes and sixty-seven 12 lb boxes in the truck.
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