document.write( "Question 630891: An investor invested a total of $2500 in two mutual funds. One fund earned a 8% profit while the other earned a 3% profit. If the investors total profit was $110, how much was invested in each mutual fund? \n" ); document.write( "
Algebra.Com's Answer #397245 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( " 2500
\n" ); document.write( "Interest----- 110
\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= 2500 -------------1
\n" ); document.write( "Interest earned on both investments
\n" ); document.write( "8.00% x + 3.00% y= 110
\n" ); document.write( "Multiply by 100
\n" ); document.write( "8 x + 3 y= 11000.00 --------2
\n" ); document.write( "Multiply (1) by -8
\n" ); document.write( "we get
\n" ); document.write( "-8 x -8 y= -20000.00
\n" ); document.write( "Add this to (2)
\n" ); document.write( "0 x -5 y= -9000
\n" ); document.write( "divide by -5
\n" ); document.write( " y = 1800
\n" ); document.write( "Mutual fund I 8.00% $ 700
\n" ); document.write( "Mutual fund II 3.00% $ 1800
\n" ); document.write( "
\n" ); document.write( "CHECK
\n" ); document.write( "1800 --------- 3.00% ------- 54.00
\n" ); document.write( "700 ------------- 8.00% ------- 56.00
\n" ); document.write( "Total -------------------- 110.00
\n" ); document.write( "
\n" ); document.write( "m.ananth@hotmail.ca
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