Patrick and Brooklyn are making decisions about their bank accounts. Patrick wants to deposit $300 as principal amount, with an interest of 3% compounded quarterly. Brooklyn wants to deposit $300 as the principal amount, with an interest of 5% compounded monthly. Explain which method results in more money after 2 years. Show all work.

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Chapter11: Capital Budgeting Decisions
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### Compound Interest Comparison for Patrick and Brooklyn

Patrick and Brooklyn are making decisions about their bank accounts. Patrick wants to deposit $300 as the principal amount, with an interest of 3% compounded quarterly. Brooklyn wants to deposit $300 as the principal amount, with an interest of 5% compounded monthly. Explain which method results in more money after 2 years. Show all work.

#### Patrick's Account (3% Interest Compounded Quarterly)

Formula: \( A = P \left(1 + \frac{r}{n}\right)^{nt} \)

- \( P = 300 \) (Principal amount)
- \( r = 0.03 \) (Annual interest rate)
- \( n = 4 \) (Number of times interest is compounded per year)
- \( t = 2 \) (Time in years)

\[ A = 300 \left(1 + \frac{0.03}{4}\right)^{4 \times 2} \]
\[ A = 300 \left(1 + 0.0075\right)^8 \]
\[ A = 300 \left(1.0075\right)^8 \]
\[ A = 300 \times 1.06152006 \]
\[ A \approx 318.46 \]

#### Brooklyn's Account (5% Interest Compounded Monthly)

Formula: \( A = P \left(1 + \frac{r}{n}\right)^{nt} \)

- \( P = 300 \) (Principal amount)
- \( r = 0.05 \) (Annual interest rate)
- \( n = 12 \) (Number of times interest is compounded per year)
- \( t = 2 \) (Time in years)

\[ A = 300 \left(1 + \frac{0.05}{12}\right)^{12 \times 2} \]
\[ A = 300 \left(1 + 0.00416667\right)^{24} \]
\[ A = 300 \left(1.00416667\right)^{24} \]
\[ A = 300 \times 1.10494134 \]
\[ A \approx 331.48 \]

#### Conclusion

After 2 years, Patrick's account will have approximately $318.46, while Brooklyn's account will have approximately $331.48. Therefore, Brooklyn's method of depositing
Transcribed Image Text:### Compound Interest Comparison for Patrick and Brooklyn Patrick and Brooklyn are making decisions about their bank accounts. Patrick wants to deposit $300 as the principal amount, with an interest of 3% compounded quarterly. Brooklyn wants to deposit $300 as the principal amount, with an interest of 5% compounded monthly. Explain which method results in more money after 2 years. Show all work. #### Patrick's Account (3% Interest Compounded Quarterly) Formula: \( A = P \left(1 + \frac{r}{n}\right)^{nt} \) - \( P = 300 \) (Principal amount) - \( r = 0.03 \) (Annual interest rate) - \( n = 4 \) (Number of times interest is compounded per year) - \( t = 2 \) (Time in years) \[ A = 300 \left(1 + \frac{0.03}{4}\right)^{4 \times 2} \] \[ A = 300 \left(1 + 0.0075\right)^8 \] \[ A = 300 \left(1.0075\right)^8 \] \[ A = 300 \times 1.06152006 \] \[ A \approx 318.46 \] #### Brooklyn's Account (5% Interest Compounded Monthly) Formula: \( A = P \left(1 + \frac{r}{n}\right)^{nt} \) - \( P = 300 \) (Principal amount) - \( r = 0.05 \) (Annual interest rate) - \( n = 12 \) (Number of times interest is compounded per year) - \( t = 2 \) (Time in years) \[ A = 300 \left(1 + \frac{0.05}{12}\right)^{12 \times 2} \] \[ A = 300 \left(1 + 0.00416667\right)^{24} \] \[ A = 300 \left(1.00416667\right)^{24} \] \[ A = 300 \times 1.10494134 \] \[ A \approx 331.48 \] #### Conclusion After 2 years, Patrick's account will have approximately $318.46, while Brooklyn's account will have approximately $331.48. Therefore, Brooklyn's method of depositing
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