Suppose your​ friend's parents invest $ 25 comma 000 in an account paying 5 % compounded annually. What will the balance be after 10 ​years?

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Part 1
The account balance will be ​$
  
enter your response here
​(Round to the nearest cent as​ needed.)

1 answer

To find the balance after 10 years for an investment of $25,000 at an interest rate of 5% compounded annually, you can use the formula for compound interest:

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

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 or borrowed.

Given:

  • \( P = 25,000 \)
  • \( r = 0.05 \) (5% as a decimal)
  • \( n = 10 \)

Now, plug the values into the formula:

\[ A = 25000 \times (1 + 0.05)^{10} \] \[ A = 25000 \times (1.05)^{10} \] \[ A = 25000 \times 1.628894626777442 \] (approximately) \[ A \approx 40722.36 \]

So, the account balance after 10 years will be approximately $40,722.36.

Rounding to the nearest cent, the answer is:

$40,722.36.