document.write( "Question 84899: Investing her bonus: Donna invested her $33,000 bonus and received a total of $970 in interest after one year. If part of the money returned 4% and remainder 2.25%, then how much did she invest at each rate? \r
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Algebra.Com's Answer #61181 by ankor@dixie-net.com(22740)\"\" \"About 
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A $33,000 bonus and received a total of $970 in interest after one year
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\n" ); document.write( " If part of the money returned 4% and remainder 2.25%, then how much did she invest at each rate?
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\n" ); document.write( "Let x = amt invested at 4%
\n" ); document.write( "Then:
\n" ); document.write( "(33000-x) = amt invested at 2.25%
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\n" ); document.write( "Interest on 4% amt + interest on 2.25% amt given as $970
\n" ); document.write( ".04x + .0225(33000 - x) = 970
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\n" ); document.write( ".04x + 742.5 - .0225x = 970; multiplied what's inside the bracket
\n" ); document.write( ".04x - .0225x = 970 - 742.5
\n" ); document.write( ".0175x = 227.5
\n" ); document.write( "x = 227.5/.0175
\n" ); document.write( "x = $13,000 invested at 4%
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\n" ); document.write( "Obviously then $20,000 in vested 2.25%
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\n" ); document.write( "Check solutions:
\n" ); document.write( ".04(13000) + .0225(20000) =
\n" ); document.write( "520 + 450 = 970 \n" ); document.write( "
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