Question
upstudy study bank question image url

Question An account is opened with an initial deposit of \( \$ 700 \) and earns \( 3.3 \% \) interest compounded semi-annually. What will the account be worth in 3 years? Round your answer to the nearest cent. Do NOT round until you have calculated the final answer.

Ask by Powell Munoz. in the United States
Jan 24,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

After 3 years, the account will be worth \$772.23.

Solution

To determine the future value of an account with compound interest, we'll use the **compound interest formula**: \[ A = P \left(1 + \frac{r}{n}\right)^{nt} \] where: - \( A \) = the amount of money accumulated after \( t \) years, including interest. - \( P \) = the principal amount (initial deposit) = \$700. - \( r \) = annual interest rate (in decimal) = 3.3% = 0.033. - \( n \) = number of times the interest is compounded per year = 2 (semi-annually). - \( t \) = number of years the money is invested = 3. **Step 1: Plug the values into the formula** \[ A = 700 \left(1 + \frac{0.033}{2}\right)^{2 \times 3} \] \[ A = 700 \left(1 + 0.0165\right)^6 \] \[ A = 700 \left(1.0165\right)^6 \] **Step 2: Calculate \( \left(1.0165\right)^6 \)** To compute \( 1.0165^6 \) without rounding until the final step: \[ 1.0165^6 \approx 1.1031798 \] **Step 3: Multiply by the principal** \[ A = 700 \times 1.1031798 \approx 772.22586 \] **Step 4: Round to the nearest cent** \[ A \approx \$772.23 \] **Final Answer:** After 3 years, the account will be worth **\$772.23**.

Reviewed and approved by the UpStudy tutoring team

error msg
Explain
Simplify this solution

Beyond the Answer

To calculate the future value of an account with compound interest, you can use the formula: \[ A = P \left(1 + \frac{r}{n}\right)^{nt} \] where: - \( A \) is the amount of money accumulated after n years, including interest. - \( P \) is the principal amount (the initial deposit). - \( r \) is the annual interest rate (decimal). - \( n \) is the number of times that interest is compounded per year. - \( t \) is the number of years the money is invested or borrowed. Given: - \( P = 700 \) - \( r = 0.033 \) (which is \( 3.3\% \)) - \( n = 2 \) (since interest is compounded semi-annually) - \( t = 3 \) Plugging in the values: \[ A = 700 \left(1 + \frac{0.033}{2}\right)^{2 \times 3} \] \[ A = 700 \left(1 + 0.0165\right)^{6} \] \[ A = 700 \left(1.0165\right)^{6} \] Calculating \( (1.0165)^6 \): \[ (1.0165)^6 \approx 1.10530 \] Now substituting back: \[ A \approx 700 \times 1.10530 \approx 773.71 \] Therefore, the account will be worth approximately \( \$ 773.71 \) after 3 years.

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy