document.write( "Question 220057: marsha invested part of 18,000.00 at 16% and the remainder at 20%. Her total income from these two investments was $3120.00 how much was invested? \n" ); document.write( "
Algebra.Com's Answer #165299 by rfer(16322)\"\" \"About 
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.16x+.2(18000-x)=3120
\n" ); document.write( ".16+3600-.2x=3120
\n" ); document.write( "-.04x=-480
\n" ); document.write( "x=12000 at 16%
\n" ); document.write( "6000 at 20%
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