Final answer:
Alex will have accumulated approximately $43,751.16 at the end of 36 years when he retires, given the initial deposit, interest rate, and compounding period.
Step-by-step explanation:
To calculate how much Alex will have at the end of 36 years, we can use the formula for compound interest:
A = P(1 + r/n)nt
Where:
- A is the final amount
- P is the initial deposit
- r is the annual interest rate (as a decimal)
- n is the number of times the interest is compounded per year
- t is the number of years
Plugging in the values from the question:
- P = $11,687
- r = 0.03 (3% as a decimal)
- n = 12 (compounded monthly)
- t = 36
We can now calculate:
- Divide the annual interest rate by the number of times it is compounded per year: 0.03 / 12 = 0.0025
- Calculate the number of times the interest is compounded over the given number of years: 12 x 36 = 432
- Calculate the final amount: $11,687(1 + 0.0025)432 = $43,751.16
Therefore, Alex will have accumulated approximately $43,751.16 at the end of 36 years when he retires.