document.write( "Question 1151379: Question Help
\n" ); document.write( "In planning her retirement, Liza deposits some money at
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Algebra.Com's Answer #773126 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "Let x be the amount deposited at 2% interest, in dollars.\r\n" );
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document.write( "Then the amount deposited at 2.5% is 2x dollars.\r\n" );
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document.write( "The total annual interest is the sum of the two particular annual interests\r\n" );
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document.write( "    0.02x + 0.025*(2x) = 700  dollars.\r\n" );
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document.write( "Simplify and solve for x\r\n" );
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document.write( "    0.0.2x + 0.05x = 700\r\n" );
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document.write( "    0.07x          = 700\r\n" );
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document.write( "        x          =  = 10000.\r\n" );
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document.write( "ANSWER.  $10000 was invested at 2%  annual interest rate and  $20000 was invested at 2.5% annual interest rate.\r\n" );
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document.write( "CHECK.  0.02*10000 + 0.025*20000 = 700  dollars.   ! Precisely correct !\r\n" );
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