document.write( "Question 805496: an investor invested a total of 2500 in two mutual funds. One fund earned a 7% profit while the other earned a 5% profit. if the investors total profit $157, how much was invested in each fund. \n" ); document.write( "

Algebra.Com's Answer #485296 by mananth(16946) $\"\"$ $\"About$

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Part I 5.00% per annum ------------- Amount invested =x
\n" ); document.write( "Part II 7.00% per annum ------------ Amount invested = y
\n" ); document.write( " 2500
\n" ); document.write( "Interest----- 157.00
\n" ); document.write( "
\n" ); document.write( "Part I 5.00% per annum ---x
\n" ); document.write( "Part II 7.00% per annum ---y
\n" ); document.write( "Total investment
\n" ); document.write( "x + 1 y= 2500 -------------1
\n" ); document.write( "Interest on both investments
\n" ); document.write( "5.00% x + 7.00% y= 157
\n" ); document.write( "Multiply by 100
\n" ); document.write( "5 x + 7 y= 15700.00 --------2
\n" ); document.write( "Multiply (1) by -5
\n" ); document.write( "we get
\n" ); document.write( "-5 x -5 y= -12500.00
\n" ); document.write( "Add this to (2)
\n" ); document.write( "0 x 2 y= 3200
\n" ); document.write( "divide by 2
\n" ); document.write( " y = 1600 - x)
\n" ); document.write( "Part I 5.00% $ 900
\n" ); document.write( "Part II 7.00% $ 1600
\n" ); document.write( "
\n" ); document.write( "CHECK
\n" ); document.write( "900 --------- 5.00% ------- 45.00
\n" ); document.write( "1600 ------------- 7.00% ------- 112.00
\n" ); document.write( "Total -------------------- 157.00
\n" ); document.write( "
\n" ); document.write( "m.ananth@hotmail.ca
\n" ); document.write( " \n" ); document.write( "

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