document.write( "Question 295429: A businessman has three times as much money invested at 3% as he does at 4.5%. The income from both investments for a year is $675. How much is invested at each rate.
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Algebra.Com's Answer #212898 by stanbon(75887)\"\" \"About 
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A businessman has three times as much money invested at 3% as he does at 4.5%. The income from both investments for a year is $675. How much is invested at each rate.
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\n" ); document.write( "Equations:
\n" ); document.write( "Quantity: x = 3y
\n" ); document.write( "Interest:0.03x + 0.045y = 675
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\n" ); document.write( "Substitute for \"x\":
\n" ); document.write( "0.03(3y) + 0.045y = 675
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\n" ); document.write( "Multiply thru by 1000:
\n" ); document.write( "3(30y) + 45y = 675000
\n" ); document.write( "135y = 675000
\n" ); document.write( "y = $5000.00
\n" ); document.write( "x = (1/3)(5000) = $1666.67
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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