document.write( "Question 734074: An investor invested a total of $2200 in two mutual funds. One earned 5% profit while the other earned a 3% profit. If the investor's total profit was $86, how much was invested in each mutual fund? \n" ); document.write( "
Algebra.Com's Answer #448705 by mananth(16946)\"\" \"About 
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Part I 3.00% per annum ------------- Amount invested =x
\n" ); document.write( "Part II 5.00% per annum ------------ Amount invested = y
\n" ); document.write( " 2200
\n" ); document.write( "Interest----- 86.00
\n" ); document.write( "
\n" ); document.write( "Part I 3.00% per annum ---x
\n" ); document.write( "Part II 5.00% per annum ---y
\n" ); document.write( "Total investment
\n" ); document.write( "x + 1 y= 2200 -------------1
\n" ); document.write( "Interest on both investments
\n" ); document.write( "3.00% x + 5.00% y= 86
\n" ); document.write( "Multiply by 100
\n" ); document.write( "3 x + 5 y= 8600.00 --------2
\n" ); document.write( "Multiply (1) by -3
\n" ); document.write( "we get
\n" ); document.write( "-3 x -3 y= -6600.00
\n" ); document.write( "Add this to (2)
\n" ); document.write( "0 x 2 y= 2000
\n" ); document.write( "divide by 2
\n" ); document.write( " y = 1000
\n" ); document.write( "Part I 3.00% $ 1200
\n" ); document.write( "Part II 5.00% $ 1000
\n" ); document.write( "
\n" ); document.write( "CHECK
\n" ); document.write( "1200 --------- 3.00% ------- 36.00
\n" ); document.write( "1000 ------------- 5.00% ------- 50.00
\n" ); document.write( "Total -------------------- 86.00
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\n" ); document.write( "m.ananth@hotmail.ca
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