Khloe is going to invest in an account paying an interest rate of \( 1.5 \% \) compounded annually. How much would Khloe need to invest, to the nearest dollar, for the value of the account to reach \( \$ 54,000 \) in 11 years?
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Mind Expander
To determine how much Khloe needs to invest now, we can use the formula for compound interest: \[ A = P(1 + r)^t \] 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). - \( t \) is the number of years the money is invested for. Rearranging the formula to find \( P \): \[ P = \frac{A}{(1 + r)^t} \] Given: - \( A = 54,000 \) - \( r = 0.015 \) (which is \( 1.5\% \)) - \( t = 11 \) Plugging in the values: \[ P = \frac{54000}{(1 + 0.015)^{11}} \] Calculating \( (1 + 0.015)^{11} \): \[ (1.015)^{11} \approx 1.171659 \] Now, substituting back into the formula: \[ P \approx \frac{54000}{1.171659} \approx 46,063.96 \] Rounding to the nearest dollar, Khloe would need to invest approximately **$46,064**. Happy investing, Khloe!
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