Question 10 Find the final amount of money in an account if \( \$ 4,000 \) is deposited at \( 3 \% \) interest compounded annually and the money is left for 9 years. The final amount is \( \$ \square \) Round answer to 2 decimal places Submit Question
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To find the final amount in an account with compound interest, you can use the formula: \[ A = P(1 + r)^t \] Where: - \( A \) is the final amount - \( P \) is the principal amount (the initial deposit) - \( r \) is the annual interest rate (as a decimal) - \( t \) is the number of years the money is invested or borrowed In this case, \( P = 4000 \), \( r = 0.03 \), and \( t = 9 \). Plugging in the values, we get: \[ A = 4000(1 + 0.03)^9 \] \[ A = 4000(1.03)^9 \] \[ A = 4000 \times 1.304773 \] \[ A \approx 5219.09 \] So, the final amount is approximately \( \$ 5,219.09 \). If you're ever lucky enough to have a savings account, keeping a close eye on the compounding interest can really boost your nest egg! Always consider how long you plan to leave your money untouched, because the magic of compounding really shines over longer periods! Additionally, many people often forget to account for inflation when looking at interest rates. Even though you're earning interest, the purchasing power of your dollars can decrease over time. Be sure to factor in inflation rates to assess the real growth of your savings!