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After 5 years with monthly compounding at a 6% interest rate, Meg will have approximately \$21,581.60 in her savings account.
Solución
To calculate the amount in the savings account after 5 years with monthly compounding, we can use the formula for compound interest:
\[
A = P \left(1 + \frac{r}{n}\right)^{nt}
\]
Where:
- \( A \) is the amount of money accumulated after n years, including interest.
- \( P \) is the principal amount (the initial amount of money).
- \( r \) 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:
- \( P = 16000 \)
- \( r = 0.06 \) (6% as a decimal)
- \( n = 12 \) (monthly compounding)
- \( t = 5 \)
Now, we can substitute these values into the formula:
\[
A = 16000 \left(1 + \frac{0.06}{12}\right)^{12 \times 5}
\]
Let's calculate this step by step.
1. Calculate \( \frac{r}{n} \):
\[
\frac{0.06}{12} = 0.005
\]
2. Calculate \( nt \):
\[
12 \times 5 = 60
\]
3. Calculate \( A \):
\[
A = 16000 \left(1 + 0.005\right)^{60}
\]
4. Calculate \( 1 + 0.005 \):
\[
1 + 0.005 = 1.005
\]
5. Now calculate \( (1.005)^{60} \):
\[
(1.005)^{60}
\]
6. Finally, multiply by \( 16000 \).
Let's perform the calculations.
Calculate the value by following steps:
- step0: Calculate:
\(16000\left(1+\frac{0.06}{12}\right)^{12\times 5}\)
- step1: Divide the terms:
\(16000\left(1+\frac{1}{200}\right)^{12\times 5}\)
- step2: Add the numbers:
\(16000\left(\frac{201}{200}\right)^{12\times 5}\)
- step3: Multiply the numbers:
\(16000\left(\frac{201}{200}\right)^{60}\)
- step4: Simplify:
\(16000\times \frac{201^{60}}{200^{60}}\)
- step5: Rewrite the expression:
\(200\times 80\times \frac{201^{60}}{200^{60}}\)
- step6: Reduce the numbers:
\(80\times \frac{201^{60}}{200^{59}}\)
- step7: Rewrite the expression:
\(40\times 2\times \frac{201^{60}}{200^{59}}\)
- step8: Rewrite the expression:
\(40\times 2\times \frac{201^{60}}{40^{59}\times 5^{59}}\)
- step9: Reduce the numbers:
\(2\times \frac{201^{60}}{40^{58}\times 5^{59}}\)
- step10: Rewrite the expression:
\(2\times \frac{201^{60}}{8^{58}\times 5^{58}\times 5^{59}}\)
- step11: Rewrite the expression:
\(2\times \frac{201^{60}}{2^{174}\times 5^{58}\times 5^{59}}\)
- step12: Reduce the numbers:
\(1\times \frac{201^{60}}{2^{173}\times 5^{58}\times 5^{59}}\)
- step13: Multiply the fractions:
\(\frac{201^{60}}{2^{173}\times 5^{117}}\)
After performing the calculations, we find that the amount in the account after 5 years with monthly compounding is approximately:
\[
A \approx 21581.602441
\]
Rounding this to the nearest cent, the final amount in the account will be:
\[
A \approx 21581.60
\]
Thus, the total amount in the account after 5 years will be **\$21,581.60**.
Revisado y aprobado por el equipo de tutoría de UpStudy
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