Question An account is opened with an initial deposit of \( \$ 700 \) and earns \( 3.3 \% \) interest compounded semi-annually. What will the account be worth in 3 years? Round your answer to the nearest cent. Do NOT round until you have calculated the final answer.
Real Tutor Solution
Answer
Solution
Reviewed and approved by the UpStudy tutoring team
Beyond the Answer
To calculate the future value of an account with compound interest, you can use the formula: \[ A = P \left(1 + \frac{r}{n}\right)^{nt} \] where: - \( A \) is the amount of money accumulated after n years, including interest. - \( P \) is the principal amount (the initial deposit). - \( r \) is the annual interest rate (decimal). - \( n \) is the number of times that interest is compounded per year. - \( t \) is the number of years the money is invested or borrowed. Given: - \( P = 700 \) - \( r = 0.033 \) (which is \( 3.3\% \)) - \( n = 2 \) (since interest is compounded semi-annually) - \( t = 3 \) Plugging in the values: \[ A = 700 \left(1 + \frac{0.033}{2}\right)^{2 \times 3} \] \[ A = 700 \left(1 + 0.0165\right)^{6} \] \[ A = 700 \left(1.0165\right)^{6} \] Calculating \( (1.0165)^6 \): \[ (1.0165)^6 \approx 1.10530 \] Now substituting back: \[ A \approx 700 \times 1.10530 \approx 773.71 \] Therefore, the account will be worth approximately \( \$ 773.71 \) after 3 years.