Answer:
In 9 years, the account will be worth $1699.48
Explanation:
Compound interest is interest calculated on the initial principal and also on the accumulated interest of previous periods of a deposit or loan. Ian invested $1.315 in savings account which earns 2.86% interest compunded quaterly.
The ammount of money the account will be worth is given by the formula:
![A = P(1 + ([(r)/(4))/(100) )^4n](https://img.qammunity.org/2020/formulas/mathematics/middle-school/4xtne38kv96i59abco7f2419m9wg4f7vfm.png)
where r: Rate of annual interest = 2.86%
n: the number of years = 9
P= Principal ammount = $1315
Then A= $1699.48