document.write( "Question 1140176: How long does it take for $3800 to double if it is invested at 7% compounded continuously? Round your answer to two decimal places, if necessary. \n" ); document.write( "
Algebra.Com's Answer #760682 by MathTherapy(10552)\"\" \"About 
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How long does it take for $3800 to double if it is invested at 7% compounded continuously? Round your answer to two decimal places, if necessary.
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Formula for time (t) that it takes an amount (PV) to \"balloon\" to a specific amount (FV), when compounded continuously: \"matrix%281%2C3%2C+t%2C+%22=%22%2C+ln+%28A%2FP%29%2Fr%29\" 
\n" ); document.write( "Since the investment will double the FV (A) and PV (P) are unnecessary, and so we use 2 for A, and 1 for P.
\n" ); document.write( "And, with r being annual interest rate, and t being time, in years, we get: \n" ); document.write( "
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