document.write( "Question 235929: A commonly asked question is, “How long will it take to double my money?” At 7% interest rate and continuous compounding, what is the answer? Round your answer to the hundredth's place. \n" ); document.write( "
Algebra.Com's Answer #173700 by stanbon(75887)\"\" \"About 
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A commonly asked question is, “How long will it take to double my money?” At 7% interest rate and continuous compounding, what is the answer? Round your answer to the hundredth's place.
\n" ); document.write( "A(t) = Pe^(rt)
\n" ); document.write( "----
\n" ); document.write( "If P is doubled you get:
\n" ); document.write( "2P = Pe^(rt)
\n" ); document.write( "e^(rt) = 2
\n" ); document.write( "---
\n" ); document.write( "Take the natural log of both sides:
\n" ); document.write( "rt = ln(2)
\n" ); document.write( "t = [ln(2)]/r
\n" ); document.write( "t = [ln(2)]/0.07
\n" ); document.write( "t = 9.9 years (time to double the money at 7% interest compouded continuously)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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