Question

Luis decides to invest $120,000 in a mutual fund that offers him 3.1% compound interest annually. This means that each year, the amount of money he has in the fund increases by 3.1% compared to the previous year. How much total money will there be in Luis's investment after 5 years?

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Answer to a math question Luis decides to invest $120,000 in a mutual fund that offers him 3.1% compound interest annually. This means that each year, the amount of money he has in the fund increases by 3.1% compared to the previous year. How much total money will there be in Luis's investment after 5 years?

Expert avatar
Timmothy
4.8
97 Answers
1. Use the compound interest formula: A = P \left(1 + \frac{r}{n}\right)^{nt} .

2. Substitute the given values: P = 120,000 , r = 0.031 , n = 1 , and t = 5 .

3. Simplify the expression: A = 120,000 \left(1 + \frac{0.031}{1}\right)^5 .

4. Further simplify inside the parentheses: A = 120,000 \left(1 + 0.031\right)^5 .

5. Which simplifies to: A = 120,000 \left(1.031\right)^5 .

6. Calculate the exponent: A=120,000\left(1.1649\right) .

7. Multiply to find: A\approx139789.51 .

Thus, the total money in Luis's investment after 5 years will be approximately 139789.51 .

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