Cool Girl

Ok, thanks!

Ok, thank you for explaining compound interests. I still don't get annuities though. Also, could someone explain to me combinations and permutations?

I'm really sorry, but it's still not clear to me.

Hey guys, So I need help doing these problems. These problems are pre-calculus (involves Annuities, Compound Interest, and Salaries) Could someone help me? 1) A principal of $2500 is invested at 8% interest. Find the amount after 20 years if the interest is compounded a) annually, semiannually, c) quarterly, d) monthly, and e) daily 2) A deposit of $100 is made at the beginning of each month in an account that pays 6%, compounded monthly. The balance A in the account at the end of 5 years is A = 100(1 + 0.06/12)1+ . . . + 100(1+0.06/12)60 Find A. 3) Consider an initial deposit of P dollars in an account earning an annual interest rate r, compounded monthly. At the end of each month, a withdrawal of W dollars will occur and the account will be depleted in t years. The amount of the initial deposit required is P = W(1 + r/12)-1 + W(1 + r/12)-2 + . . . + W(1 + r/12)-12t Show that the initial deposit is P = W(12/r)[1-(1 + r/12)-12t] 4) Determine the amount required in a retirement account for an individual who retires at age 65 and wants an income of $2000 from the account each month for 20 years. Use the result of the previous problem and assume that the account earns 9% compounded monthly. 5) An investment firm has a job opening with a salary of $30,000 for the first year. Suppose that during the next 39 years, there is a 5% raise each year. Find the total compensation over the 40-year period. Any help on these problems would be greatly appreciated. Yeah, I suck at math problems.

One of my favorite songs

Which program?

I don't know how to "zoom" it. I tried adjusting the crop, but that's about it. If you know how, then please tell me.

8/10

That would make a nice meme! xD

6/10

8/10

already rated/10

Nice!

Cool Girl?

Hey Coderis and welcome to Reborn. We hope you enjoy your stay! Hope we get to know each other!

Awesome! I want to be your first member!

@ Viridescent: Thank you! @Dobby The Elf: The emotional topics that I post are not to get attention at all! The emotional topics are things that I'm going through and I just need advice and I always appreciate it. Reborn has always been like a family to me!