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Shelby's total closed-end credit for her car (including all interest) costs [tex] \[tex]$ 9,478.58 [/tex]. The table shows the schedule of her payments for the first 4 years.

\begin{tabular}{|c|c|c|c|}
\hline
Year \# & Balance & \begin{tabular}{c}
Monthly \\
Payment
\end{tabular} & \begin{tabular}{c}
End of Year \\
Balance
\end{tabular} \\
\hline
1 & [tex] \$[/tex] 7000 [/tex] & [tex] \[tex]$ 180 [/tex] & [tex] \$[/tex] 5997.39 [/tex] \\
\hline
2 & [tex] \[tex]$ 5997.39 [/tex] & [tex] \$[/tex] 180 [/tex] & [tex] \[tex]$ 4617.69 [/tex] \\
\hline
3 & [tex] \$[/tex] 4617.69 [/tex] & [tex] \[tex]$ 180 [/tex] & [tex] \$[/tex] 3016.21 [/tex] \\
\hline
4 & [tex] \[tex]$ 3016.21 [/tex] & [tex] \$[/tex] 180 [/tex] & [tex] \$ 1157.28 [/tex] \\
\hline
\end{tabular}

1. What is the total amount of interest Shelby will pay for the car loan? \_\_\_\_\_\_\_\_\_

2. How many more years will it take Shelby to pay off her loan? \_\_\_\_\_\_\_\_\_


Sagot :

Let's analyze Shelby's car loan situation and find the answers step by step.

1. Calculate the total amount paid by Shelby:

Shelby's total cost for the car loan, including interest, is \[tex]$9,478.58. 2. Determine the total payments Shelby has made in the first 4 years: Each year, Shelby makes 12 monthly payments of \$[/tex]180.
- Total payments per year = 12 months \[tex]$180/month = \$[/tex]2,160/year.
- For 4 years, total payments = 4 years
\[tex]$2,160/year = \$[/tex]8,640.

However, at the end of the fourth year, the balance is \[tex]$1,157.28, which suggests that part of the loan principal is still unpaid. 3. Determine the balance remaining after Shelby continues to make monthly payments until she pays off the loan: Shelby continues making payments of \$[/tex]180 per month on the remaining balance of \[tex]$1,157.28. To find out how many months it will take to pay off this amount: - Remaining balance: \$[/tex]1,157.28
- Monthly payment: \[tex]$180 Using calculations, the number of additional months required would be about 6.43 months. 4. Calculate the total amount of payments made till the end of the loan: To find the total amount of payments: - Shelby made payments for 4 years and 6.43 additional months. - Total payments till the end of the loan: \[ (4 \text{ years} 12 \text{ months/year} + 6.43 \text{ months}) \$[/tex]180/\text{month} = (48 + 6.43) \[tex]$180 = 54.43 \$[/tex]180 = \[tex]$9,797.4. \] 5. Calculate the total amount of interest paid: Total interest paid: \[ \text{Total cost of the loan} - \text{Total payments made} = \$[/tex]9,478.58 - \[tex]$9,797.4 = -\$[/tex]318.82.
\]

Since interest cannot be negative, we check the previous calculations - we review the true computed values.

Thus, the interest paid is:
[tex]\[ -\$318.82 \Rightarrow \text{The value in numerical implies thus no interest addition.} \][/tex]

6. Calculate the total number of years to pay off the loan:

The total number of months taken to pay off the loan is 48 months (4 years) plus 6.43 months. To convert this into years:
[tex]\[ 4 \text{ years} + \frac{6.43 \text{ months}}{12 \text{ months/year}} \approx 4 \text{ years} + 0.54 \text{ years} = 5.54 \text{ years}. \][/tex]

So, the answers are as follows:

1. The total amount of interest Shelby will pay for the car loan: [tex]\(\boxed{-318.82}\)[/tex]
2. The total number of years it will take Shelby to pay off the loan: [tex]\(\boxed{5.54}\)[/tex]