Algebra II › Interest Equations
Remember
If an account has a starting principle P = $5,000, an interest rate r = 12% or 0.12, compounded annually, how much money should there be after five years? Assume no money has been added or taken out of the account since it was opened.
For coninuous compound interest:
Where
If an initial deposit of is continuously compounded at a rate of
for
years, what will be the final principal value to the nearest dollar?
Peter opens a savings account on his t birthday. He makes a deposit of
. The account earns
percent interest, compounded annually. Peter plans to take the money out when he is
years old. If he doesn't make any deposits or withdrawals until then, how much money will be in the account?
Catherine invests $3500 in an investment account. The account earns 10% interest, compounded quarterly. After 5 years, how much money will she have?
If a person deposits 300 dollars to a savings account, which earns one percent interest that is compounded annually, what is the balance after 60 years?
Round the answer to two decimals.
Anthony put ,
in his savings account today. The bank pays interest of
every year.
How much does he have in his savings account after years?
Felicia put money in a saving account with a 5% interest rate, compounded annually. After five years, she had $10,000. How much was her initial investment?
Jamie deposits $5000 into an account at ABC bank. The account will earn a 4% interest rate compounded yearly. Jamie would like to withdraw the accumulated amount after 5 years and close the account. How much money would Jamie withdraw after 5 years? (Round your answer to the nearest dollar)
Julio invests $5000 into an account with a 2.5% interest rate, compounded quarterly. What is his account balance after 1 year (rounded to the nearest cent)?
Sheila wants to double her initial investment into a compounded interest account, with an interest rate of 4%. How long will this take, if the interest is compounded annually?