SOLUTION: How long will it take 1,000 dollars to double if it is invested at an annual rate of 5% compounded continuously?

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Question 377310: How long will it take 1,000 dollars to double if it is invested at an annual rate of 5% compounded continuously?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
2P+=+Pe%5E%280.05t%29 => 2+=+e%5E%280.05t%29, or ln2 = 0.05*t, or t = ln2/0.05 = 13.86 years.