Thread: Arithmetic series question

A common interest in constant. It's $25 per year. Initial deposit is $500. After 10 years the amount of money in the account was $750. Using the arithmetic sequence which is tn= a+(n-1)d. Can you find how much money is in the account after 20 years?

Originally Posted by muhammadque

A common interest in constant. It's $25 per year. Initial deposit is $500. After 10 years the amount of money in the account was $750. Using the arithmetic sequence which is tn= a+(n-1)d. Can you find how much money is in the account after 20 years?

It's $25 per year.


Initial deposit is $500.
is greater than or equal to 500.

After 10 years the amount of money in the account was $750.


?

After 20 years.
?