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Points] DETAILS MY NOTES, WANEFMAC8 3.2.034. Petermine the amount of money, to the nearest dollar, you must invest now at \( 8 \% \) per year, compounded annually, so that you will be a millionaire in 38 yee 51,907 SUBMIT ANSWER

Ask by Gibbs Deleon. in the United States
Feb 03,2025

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Tutor-Verified Answer

Answer

You need to invest approximately $53,690 now at an 8% annual interest rate, compounded annually, to become a millionaire in 38 years.

Solution

To find the amount of money that needs to be invested now at an annual interest rate of 8% compounded annually to become a millionaire in 38 years, we can use the formula for compound interest: \[ A = P \left(1 + \frac{r}{100}\right)^n \] where: - \( A \) is the amount of money after \( n \) years, - \( P \) is the principal amount (the amount of money invested now), - \( r \) is the annual interest rate (in %), - \( n \) is the number of years. Given: - \( r = 8\% \), - \( n = 38 \) years. We want to find \( P \) such that \( A = 1,000,000 \) (to become a millionaire). Substitute the given values into the formula: \[ 1,000,000 = P \left(1 + \frac{8}{100}\right)^{38} \] Now, we can solve for \( P \) to find the amount of money that needs to be invested now. Solve the equation by following steps: - step0: Solve for \(P\): \(1000000=P\left(1+\frac{8}{100}\right)^{38}\) - step1: Simplify: \(1000000=\frac{27^{38}}{25^{38}}\times P\) - step2: Swap the sides: \(\frac{27^{38}}{25^{38}}\times P=1000000\) - step3: Rewrite the expression: \(\frac{27^{38}P}{25^{38}}=1000000\) - step4: Cross multiply: \(27^{38}P=25^{38}\times 1000000\) - step5: Simplify the equation: \(27^{38}P=1000000\times 25^{38}\) - step6: Divide both sides: \(\frac{27^{38}P}{27^{38}}=\frac{1000000\times 25^{38}}{27^{38}}\) - step7: Divide the numbers: \(P=\frac{1000000\times 25^{38}}{27^{38}}\) The amount of money that needs to be invested now at an annual interest rate of 8% compounded annually to become a millionaire in 38 years is: \[ P = \frac{1000000 \times 25^{38}}{27^{38}} \] To find the approximate value of \( P \) to the nearest dollar, we can calculate it. Calculate the value by following steps: - step0: Calculate: \(\frac{1000000\times 25^{38}}{27^{38}}\) The amount of money that needs to be invested now at an annual interest rate of 8% compounded annually to become a millionaire in 38 years is approximately $53,690.48 to the nearest dollar.

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The Deep Dive

To become a millionaire in 38 years with an investment growing at an annual interest rate of 8%, you can utilize the formula for future value: \[ A = P(1 + r)^n \] 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, and \( n \) is the number of years the money is invested. Rearranging the formula to find \( P \): \[ P = \frac{A}{(1 + r)^n} = \frac{1,000,000}{(1 + 0.08)^{38}} \] After calculating this, you would find that you need to invest approximately $51,907 now to reach your millionaire goal after 38 years. You can use financial calculators or online tools to quickly compute future value scenarios to better understand the impact of different interest rates and time periods on your investments. It's always beneficial to get accustomed to such calculations, as they can help you make informed decisions about saving and investing for your future goals.

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