document.write( "Question 627166: an investor invested a total of $1,600 in two mutual funds. one fund earned 8% profit and the other earned a 3% profit. if the investor's total profit was $83 how much was invested in each mutual fund? \n" ); document.write( "

Algebra.Com's Answer #394739 by mananth(16946) $\"\"$ $\"About$

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Mutual fund I 8.00% per annum ------------- Amount invested =x
\n" ); document.write( "Mutual fund II 3.00% per annum ------------ Amount invested = y
\n" ); document.write( " 1600
\n" ); document.write( "Interest----- 83
\n" ); document.write( "
\n" ); document.write( "Mutual fund I 8.00% per annum ---x
\n" ); document.write( "Mutual fund II 3.00% per annum ---y
\n" ); document.write( "Sum of investments
\n" ); document.write( "x + 1 y= 1600 -------------1
\n" ); document.write( "Interest earned on both investments
\n" ); document.write( "8.00% x + 3.00% y= 83
\n" ); document.write( "Multiply by 100
\n" ); document.write( "8 x + 3 y= 8300.00 --------2
\n" ); document.write( "Multiply (1) by -8
\n" ); document.write( "we get
\n" ); document.write( "-8 x -8 y= -12800.00
\n" ); document.write( "Add this to (2)
\n" ); document.write( "0 x -5 y= -4500
\n" ); document.write( "divide by -5
\n" ); document.write( " y = 900
\n" ); document.write( "Mutual fund I 8.00% $ 700
\n" ); document.write( "Mutual fund II 3.00% $ 900
\n" ); document.write( " \n" ); document.write( "

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