Pregunta
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An investment banker deposited \( \$ 50,000 \) in an account earning a nominal \( 6 \% \) per year compounded continuously. How much was in the account at the end of three years? Round the answer to nearest dollar. Select the correct answer below:

Ask by Martin Moreno. in the United States
Mar 01,2025

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The amount in the account after three years is approximately \$59,861.

Solución

To calculate the amount in the account with continuous compounding, we use the formula:   A = P · e^(rt), where:   P = initial principal = $50,000,   r = annual interest rate = 0.06,   t = time in years = 3,   e = Euler's number (approximately 2.71828). Plug in the values:   A = 50000 · e^(0.06 × 3)   A = 50000 · e^0.18 Calculating e^0.18 (approximately 1.197217) gives:   A ≈ 50000 × 1.197217 = 59860.85 Rounding to the nearest dollar, the amount in the account at the end of three years is approximately $59,861. Choose the answer that corresponds to $59,861.

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To calculate the amount in the account at the end of three years with continuous compounding, we can use the formula: \( A = Pe^{rt} \) where: - \( A \) is the amount in the account after time \( t \), - \( P \) is the principal amount (initial deposit), - \( r \) is the annual interest rate (decimal), and - \( t \) is the time in years. Here, \( P = 50,000 \), \( r = 0.06 \), and \( t = 3 \). Plugging these values in: \( A = 50000 \cdot e^{0.06 \cdot 3} \) Calculating this gives approximately: \( A \approx 50000 \cdot e^{0.18} \approx 50000 \cdot 1.1972 \approx 59860 \) Therefore, after rounding to the nearest dollar, the final amount in the account at the end of three years is approximately \( \$ 59,860 \).

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