document.write( "Question 585249: Mr. Wilson invested money in two accounts. His total investment was $20,000. If one account pays 2% in interest and the other pays 5% in interest, how much does he have in each account if he earned a total of $550 in interest in 1 year?\r
\n" ); document.write( "\n" ); document.write( "In the 2% account: $
\n" ); document.write( "In the 5% account: $
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Algebra.Com's Answer #373256 by mananth(16946)\"\" \"About 
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part I 2.00% per annum ---x
\n" ); document.write( "part II 5.00% per annum ---y
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\n" ); document.write( "x + 1 y= 20000 ------------------------1
\n" ); document.write( "2.00% x + 5.00% y= 550
\n" ); document.write( "Multiply by 100
\n" ); document.write( "2 x + 5 y= = 55000.00 --------2
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\n" ); document.write( "Multiply (1) by -2
\n" ); document.write( "we get
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\n" ); document.write( "-2 x -2 y= -40000.00
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\n" ); document.write( "Add this to (2)
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\n" ); document.write( "0 x 3 y= = 15000
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\n" ); document.write( "divide by 3
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\n" ); document.write( "y = 5000 investment at 5.00%
\n" ); document.write( "Balance 15000 investment at 2.00%
\n" ); document.write( "CHECK
\n" ); document.write( "5000 --------- 5.00% ------- 250.00
\n" ); document.write( "15000 ------- 2.00% ------- 300.00
\n" ); document.write( "Total -------------- 550.00
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