document.write( "Question 911388: Mark works strictly on commission from his gross sales selling 2 different products for his company. Last month, his gross sales were $88,000. If he earns 6% commission on product A, and 4% commission on product B, what were his gross sales for each product if he earned $4880 in total commission? \n" ); document.write( "

Algebra.Com's Answer #553066 by richwmiller(17219) $\"\"$ $\"About$

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Total amount of sales: $88000
\n" ); document.write( "x+y=88000,
\n" ); document.write( "Total commission for the two products is: $4880
\n" ); document.write( "0.06*x+0.04*y=4880
\n" ); document.write( "x=88000-y
\n" ); document.write( "Substitute for x
\n" ); document.write( "0.06*(88000-y)+0.04*y=4880
\n" ); document.write( "Multiply out
\n" ); document.write( "5280-0.06*y+0.04*y=4880
\n" ); document.write( "Combine like terms.
\n" ); document.write( "-0.02*y=-400
\n" ); document.write( "Isolate y
\n" ); document.write( "y=$ 20000.00 at 4%
\n" ); document.write( "x=88000-y
\n" ); document.write( "Calculate x
\n" ); document.write( "x=$ 68000.00 at 6%
\n" ); document.write( "Check
\n" ); document.write( "0.06*68000+0.04*20000=4880
\n" ); document.write( "4080+800=4880
\n" ); document.write( "4880=4880
\n" ); document.write( "If this statement is TRUE and neither x nor y is negative then all is well
\n" ); document.write( "code int1
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