document.write( "Question 220209: John invested $20,000 in two different accounts, one paying 7% and the other 9%. If total interest earned for the year was $1,550, how much was invested in each account. \n" ); document.write( "
Algebra.Com's Answer #165367 by Earlsdon(6294)\"\" \"About 
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Let x = the amount invested at 9% then (20,000-x) would be the amount invested at 7%. The interest on these two amounts can be expressed as:
\n" ); document.write( "0.09x+0.07(20000-x) = $1,550 Simplify this and solve for x.
\n" ); document.write( "0.09x+1400-0.07x = 1550
\n" ); document.write( "0.02x+1400 = 1550
\n" ); document.write( "0.02x = 150 then...
\n" ); document.write( "x = 7,500 and 20,000-x = $12,500
\n" ); document.write( "$7,500 was invested at 9% and $12,500 was invested at 7%
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