document.write( "Question 512822: A woman invested 4 times as much at 4% as she did at 7%. The total amount of interest she earns in 1 year from both accounts is $2,070. How much did she invest at each rate?
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Algebra.Com's Answer #342755 by mananth(16946)\"\" \"About 
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7.00% per annum ------------- x
\n" ); document.write( " 4.00% per annum ------------ y 4 x
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\n" ); document.write( " Interest----- $2,070.00
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\n" ); document.write( "7.00% x + 4.00% * 4 x = $2,070.00
\n" ); document.write( "0.07 x + 0.04 * 4 x = $2,070.00
\n" ); document.write( "0.07 x + 0.16 x = $2,070.00
\n" ); document.write( "0.23 x = $2,070.00
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\n" ); document.write( "x= $9,000.00 @ 7%
\n" ); document.write( "4 x = $36,000.00 @4%
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\n" ); document.write( " $630.00 + $1,440.00 = $2,070.00\r
\n" ); document.write( "\n" ); document.write( "m.ananth@hotmail.ca
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