document.write( "Question 696677: Can anyone help me solve this problem ? I have no idea how to do it. An investor invested a total of $1,900 in two mutual funds, one fund earned a 7% profit, while the other earned a 4% profit. If the investor's total profit was $97, how much was invested into each mutual fund?\r
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\n" ); document.write( "Amount invested into mutual fund that earned 4%-
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Algebra.Com's Answer #429233 by stanbon(75887)\"\" \"About 
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Can anyone help me solve this problem ? I have no idea how to do it. An investor invested a total of $1,900 in two mutual funds, one fund earned a 7% profit, while the other earned a 4% profit. If the investor's total profit was $97, how much was invested into each mutual fund?
\n" ); document.write( "Principal Equation: a + b = 1900
\n" ); document.write( "Interest Equation: 7a + 4b = 9700
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\n" ); document.write( "Multiply thru 1st by 4
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\n" ); document.write( "4a + 4b = 4*1900
\n" ); document.write( "7a + 4b = 9700
\n" ); document.write( "---
\n" ); document.write( "Subtract and solve for \"a\":
\n" ); document.write( "3a = 2100
\n" ); document.write( "a = 700 (amt. invested at 7%
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\n" ); document.write( "Solve for \"b\":
\n" ); document.write( "a + b = 1900
\n" ); document.write( "700 + b = 1900
\n" ); document.write( "b = 1200 (amt. invested at 4%
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "Amount invested into mutual fund that earned 7% -
\n" ); document.write( "Amount invested into mutual fund that earned 4%-
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