Briar is thinking about investing $7,800 at 4.1% for 3 years. What is the maximum value Briar can expect this investment to achieve? Round to the nearest hundred.(1 point)

maximum value =$

1 answer

To calculate the maximum value of Briar's investment, we will use the formula for compound interest, assuming the interest is compounded annually:

\[ A = P(1 + r)^n \]

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 (decimal).
  • \( n \) is the number of years the money is invested.

Given:

  • \( P = 7,800 \)
  • \( r = 4.1% = 0.041 \)
  • \( n = 3 \)

Now we can substitute these values into the compound interest formula:

\[ A = 7,800 \times (1 + 0.041)^3 \] \[ A = 7,800 \times (1.041)^3 \] \[ A = 7,800 \times 1.1277281 \quad (\text{approximating } (1.041)^3) \] \[ A \approx 8,806.08 \]

Now, rounding to the nearest hundred:

\[ \text{maximum value} \approx 8,800 \]

Therefore, the maximum value Briar can expect this investment to achieve is $8,800.

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