1. Interest on Initial Deposit: The initial deposit of $3000 will earn interest for the entire year. The annual interest rate is 6%, so the interest earned on the initial deposit after 1 year is:
Interest on Initial Deposit = Principal x Interest Rate x Time
= $3000 x 6% x 1
= $180
2. Calculating the Total Amount: If the teacher adds an additional amount , the total amount in the retirement fund after 1 year will be the sum of the initial deposit, the interest earned on the initial deposit, and the additional amount deposited.
Total Amount = Initial Deposit + Interest on Initial Deposit + Additional Amount
= $3000 + $180 +
= $3180
Therefore, if the teacher adds to her retirement fund earning 6% annual interest, she will have $3180 after 1 year.