In Exercises 25 and 26, determine the time necessary for $1000 to double if it is invested at interest rate r compounded (a) annually, (b) monthly, (c) daily, and (d) continuously. 25. r = 10%

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Chapter5: Exponential And Logarithmic Functions
Section5.5: Exponential And Logarithmic Models
Problem 15E: Compound Interest In Exercises 15 and 16, determine the time necessary for P dollars to double when...
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(Compound interest) In Exercises 25 and 26, determine the time necessary for $1000 to double if it is invested at interest rate r compounded (a) annually, (b) monthly, (c) daily, and (d) continuously.

25. r = 10%         26. r = 6.5%

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