document.write( "Question 490171: jordan had $15,000 to invest. he invested some at 5% and the rest at 6%. at the end of the year he had made $860. how much did he invest at each amount? \n" ); document.write( "

Algebra.Com's Answer #333896 by mananth(16946) $\"\"$ $\"About$

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Investment I 5.00% per annum ---x
\n" ); document.write( "Investment II 6.00% per annum ---y
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\n" ); document.write( "x + y= 15000 ------------------------1
\n" ); document.write( "5.00% x + 6.00% y = $860.00
\n" ); document.write( "Multiply by 100
\n" ); document.write( "5 x + 6 y = $86,000.00 --------2
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\n" ); document.write( "Multiply (1) by -5
\n" ); document.write( "we get
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\n" ); document.write( "-5 x -5 y = -75000.00
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\n" ); document.write( "Add this to (2)
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\n" ); document.write( "0 x 1 y = $11,000.00
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\n" ); document.write( "divide by 1
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\n" ); document.write( " y = $11,000.00 investment at
\n" ); document.write( "Balance $4,000.00 investment at
\n" ); document.write( "CHECK
\n" ); document.write( "$4,000.00 $200.00
\n" ); document.write( "$11,000.00 $660.00
\n" ); document.write( "Total $860.00
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