document.write( "Question 1139803: How many years are required for $500 to grow to $800 at 1.5% simple interest \n" ); document.write( "

Algebra.Com's Answer #760385 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "800 = 500 + 500*0.015*t\r\n" );
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document.write( "800 - 500 = 500*0.015*t\r\n" );
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document.write( "300       = 500*0.015*t\r\n" );
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document.write( " = 0.015*t\r\n" );
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document.write( " = 0.015*t\r\n" );
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document.write( "t =  =  = 40 years.   ANSWER\r\n" );
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document.write( "CHECK.  At this rate, $500 grow by  500*0.015 = 7.50 dollars per year.\r\n" );
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document.write( "        $7.50*40 = 200 dollars = 500 - 300 dollars.   ! Correct !\r\n" );
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