```latex
\begin{tabular}{|l|l|l|}
\hline \multicolumn{4}{|c|}{Problem} \\
\hline Carly purchased [tex]$9 \frac{1}{2}$[/tex] pints of ice cream for a party. \\
If each guest will be served exactly [tex]$\frac{3}{5}$[/tex] pint of ice \\
cream, what is the greatest number of guests that \\
Carly can serve? \\
\begin{tabular}{llll}
A. 5 & B. 9 & C. 15 & D. 16
\end{tabular}
\end{tabular}
```



Answer :

To determine the greatest number of guests Carly can serve with her 9.5 pints of ice cream, we need to follow these steps:

1. Convert Mixed Number to Fraction (if necessary):
- Carly has [tex]\(9 \frac{1}{2}\)[/tex] pints of ice cream.
- Convert [tex]\(9 \frac{1}{2}\)[/tex] to an improper fraction:
[tex]\[ 9 \frac{1}{2} = 9 + \frac{1}{2} = \frac{18}{2} + \frac{1}{2} = \frac{19}{2} \][/tex]
However, since the problem can also use decimal notation directly,
[tex]\[ 9 \frac{1}{2} = 9.5 \][/tex]

2. Determine the amount of ice cream each guest receives:
- Each guest receives [tex]\(\frac{3}{5}\)[/tex] of a pint of ice cream.

3. Convert the Fraction to a Decimal (if necessary):
- [tex]\(\frac{3}{5} = 0.6\)[/tex]

4. Divide the Total Amount of Ice Cream by the Amount per Guest:
- Total ice cream Carly has: [tex]\(9.5\)[/tex] pints.
- Amount of ice cream per guest: [tex]\(0.6\)[/tex] pints.

- Determine the number of guests Carly can serve by dividing the total amount by the amount per guest:
[tex]\[ \text{number of guests} = \frac{9.5}{0.6} \][/tex]

5. Perform the Division:
- [tex]\(\frac{9.5}{0.6} \approx 15.83\)[/tex]
- Since Carly can only serve whole guests and not a fraction of a guest, you need to take the integer part of this value.

6. Conclusion:
- The greatest number of guests Carly can serve is 15.

Therefore, the correct answer is:

C. 15