Suppose that \( \$ 2000 \) is loaned at a rate of \( 11 \% \), compounded quarterly. Assuming that no payments are made, find the amount owed after 10 years. Do not round any intermediate computations, and round your answer to the nearest cent.
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The Deep Dive
To find the amount owed after 10 years with quarterly compounding, we use the formula for compound interest: \[ A = P \left(1 + \frac{r}{n}\right)^{nt} \] where: - \( A \) is the amount of money accumulated after n years, including interest. - \( P \) is the principal amount (the initial amount of money). - \( r \) 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 for. Given: - \( P = 2000 \) - \( r = 0.11 \) (11%) - \( n = 4 \) (quarterly) - \( t = 10 \) Now we can substitute the values into the formula: \[ A = 2000 \left(1 + \frac{0.11}{4}\right)^{4 \times 10} \] Calculating the values step-by-step: 1. Calculate \( \frac{0.11}{4} = 0.0275 \). 2. Then calculate \( 1 + 0.0275 = 1.0275 \). 3. Next, calculate \( 4 \times 10 = 40 \). 4. Now, raise \( 1.0275 \) to the power of \( 40 \): \[ 1.0275^{40} \approx 3.011202 \] 5. Finally, calculate \( A \): \[ A \approx 2000 \times 3.011202 \approx 6022.40 \] Rounding to the nearest cent, the amount owed after 10 years is approximately: \[ \boxed{6022.40} \]
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