Compound Interest Formula
![FV=P\cdot(1+(r)/(n))^(nt)](https://img.qammunity.org/2023/formulas/mathematics/college/eoo39v0f1m4d1z9b1d2zpr3xxdvxl9l0bs.png)
FV = future value of the deposit
P = principal or amount of money deposited
r = annual interest rate (in decimal form)
n = number of times compounded per year
t = time
a) How much will be in the account after ten years?
![\begin{gathered} FV=1500\cdot(1+(0.08)/(12))^(12\cdot10) \\ FV=3329.46 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/hsj30opuabqx7ek9xh1enl2kw9jlu0cwyk.png)
b) How much interest will you earn?
![3329.46-1500=1829.46](https://img.qammunity.org/2023/formulas/mathematics/college/mzu97e0j2a2aswkffftb1orqahicv6uq4t.png)
c) How much will much will you deposit into an account now in order to have $6000 in the
account in 8 years. Assume the account earns interest rate of 8% compounded monthly
![\begin{gathered} 6000=D\cdot(1+(0.08)/(12))^(12\cdot8) \\ 6000=D\cdot(1+(0.08)/(12))^(96) \\ 6000=D\cdot1.8925 \\ D=(6000)/(1.8925)=3170.41 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/p4aw3eo4xzebk28lfvsu2j2bm3fr12ehfd.png)