Posted by **Amy** on Wednesday, January 12, 2011 at 7:36pm.

What annual rate of interest is required to double an investment in 3 years?

- Precalc -
**Amy**, Wednesday, January 12, 2011 at 8:08pm
i tried solving this but got .23 instead of 26%

- Precalc -
**helper**, Wednesday, January 12, 2011 at 8:21pm
I know at 7% interest an investment will double in 10 years, but this doesn't help you.

let me see what I can find

is your problem simple interest?

- Precalc -
**Amy**, Wednesday, January 12, 2011 at 8:25pm
I think so, yes A = Pe^(r)(t)

- Precalc -
**This question is still open please help**, Wednesday, January 12, 2011 at 9:23pm
please help

## Answer this Question

## Related Questions

- compound interest - How do I solve these problems? Complete the table for a ...
- Math - What nominal annual rate of interest compounded yearly is required to ...
- PreCalc - Find the amount of time required to double a dollar investment at 7.72...
- Calculus - Money is deposited in an account for which the interest is compounded...
- programming - Having troube with java, i am not a regular programmer, if anybody...
- Math - You want to make an investment in a continuously-compounding account over...
- math modeling - An investment is made at an annual rate of 9.71% compounded ...
- math modeling - An investment is made at an annual rate of 9.71% compounded ...
- Math - You want to make an investment in a continuously compounding account over...
- Logs - The number of years n required for an investment at interest rate r to ...

More Related Questions