document.write( "Question 583459: An investor invested a total of $3,200 in two mutual funds. One fund earned a 4% profit while the other earned a 2% profit. If the investor's total profit was $98, how much was invested in a mutual fund? \n" ); document.write( "

Algebra.Com's Answer #372453 by mananth(16946) $\"\"$ $\"About$

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part I 4.00% per annum ---x
\n" ); document.write( "part II 2.00% per annum ---y
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\n" ); document.write( "x+y=3200 ------------------------1
\n" ); document.write( "4.00% x + 2.00% y= 98
\n" ); document.write( "Multiply by 100
\n" ); document.write( "4x+2y= 9800.00 --------2
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\n" ); document.write( "Multiply (1) by -4
\n" ); document.write( "we get
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\n" ); document.write( "-4x-4y= -12800.00
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\n" ); document.write( "Add this to (2)
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\n" ); document.write( "0x-2y= -3000
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\n" ); document.write( "divide by -2
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\n" ); document.write( "y = 1500 investment at 2.00%
\n" ); document.write( "Balance 1700 investment at 4.00%
\n" ); document.write( "CHECK
\n" ); document.write( "1500 --------- 2.00% ------- 30.00
\n" ); document.write( "1700 ------- 4.00% ------- 68.00
\n" ); document.write( "Total -------------- 98.00
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