document.write( "Question 1118536: Julie has $80,000 to invest. She invests part at 5%, one fourth this amount at 6%, and the balance 7%. Her total income from interest is $4,700. Find the amount invested at each rate \n" ); document.write( "

Algebra.Com's Answer #733892 by ikleyn(52800) $\"\"$ $\"About$

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document.write( "This problem, although seems to be complicated from the first glance, is actually very simple one unknown problem.\r\n" );
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document.write( "Let x be the amount invested at 5%.\r\n" );
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document.write( "Then you have this \"total interest\" equation\r\n" );
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document.write( "0.05x + 0.06*(0.25x) + 0.07*(80000 - x - 0.25x) = 4700.\r\n" );
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document.write( "This equations tells everything about itself, you only need to hear it . . . I mean \"to read it\" . . . \r\n" );
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document.write( "Please recognize that 0.25x is .\r\n" );
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document.write( "Your job now is to simplify and solve it for x.\r\n" );
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