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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document.write( "Amount invested into mutual fund that earned 7% -
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document.write( "Amount invested into mutual fund that earned 4%- \n" );
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Algebra.Com's Answer #429233 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 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 \n" ); document.write( "-------------------------------------- \n" ); document.write( "Multiply thru 1st by 4 \n" ); document.write( "---------------------------- \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% \n" ); document.write( "----- \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% \n" ); document.write( "==================================== \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%- \n" ); document.write( " \n" ); document.write( " |