document.write( "Question 849958: Suppose $4,200 is invested in an account at an annual interest rate of 6.5% compounded continuously. How long (to the nearest tenth of a year) will it take the investment to double in size? \n" ); document.write( "

Algebra.Com's Answer #511873 by Fombitz(32388) $\"\"$ $\"About$

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$\"8400=4200%281%2B0.065%29%5En\"$
\n" ); document.write( " $\"1.065%5En=2\"$
\n" ); document.write( " $\"n=log%281.065%2C2%29\"$
\n" ); document.write( " $\"n=log%282%29%2Flog%281.05%29\"$
\n" ); document.write( " $\"n=0.30103%2F0.02735\"$
\n" ); document.write( " $\"n=11.0\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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