Tuesday

September 16, 2014

September 16, 2014

Posted by **Greg** on Sunday, April 22, 2007 at 2:56pm.

please help!

the formula is A=Pe^rt, I assume yours was a typo

Consider any Principal, eg P=100

so you want

200 = 100e^(.065t)

2 = e^.065t

.065t=ln 2

I got t=10.66 using my calculator

so you can use anything you want for the principal?

yes

we could have simply used the principal P

Since we want it to "double" the amount would then be 2P

2P = P e^(.065t), divide by P and we get

2 = e^.065t like before

oh okay, thanks!

- math -
**David**, Friday, May 27, 2011 at 1:00pmThe amount of money in an account with continuously compounded interest is given by the formula A=Pe^rt , where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the nearest hundredth of a year how long it takes for an amount of money to double if interest is compounded continuously at 6.2%. Round to the nearest tenth.

**Answer this Question**

**Related Questions**

algebra - The amount of money in an account with continuously compounded ...

algebra 2 - The amount of money in an account with continuously compounded ...

math - Please help: A continuously compounded account starts with $2500 in ...

math - Suppose that you have $12,500 to invest over a 4 year period. There are ...

algebra 2 - What will be the amount in an account with initial principal $6000 ...

algebra II - What will be the amount in an account with initial principal $6000 ...

Alg 2 - Suppose you deposit a principal amount of p dollars in a bank account ...

Alg2 - Help....Help... Suppose you deposit a principal amount of p dollars in a ...

math - you deposit $2200 in an account that pays 3% annual interest. after 15 ...

math - how much money would have to be invested in an account at 3.98% annual ...