To determine the unit rate of commercials per hour, follow these steps:
1. Determine the total number of hours Wendy watched TV:
Wendy watched [tex]\(1 \frac{1}{2}\)[/tex] hours of TV. This is a mixed number which can be converted into an improper fraction or a decimal. In decimal form, [tex]\(1 \frac{1}{2} = 1 + 0.5 = 1.5\)[/tex] hours.
2. Identify the total number of commercials:
Wendy watched 15 commercials during this time.
3. Calculate the unit rate of commercials per hour:
To find the unit rate of commercials per hour, divide the total number of commercials by the total number of hours:
[tex]\[
\text{Commercials per hour} = \frac{\text{Total commercials}}{\text{Total hours watched}}
\][/tex]
Substitute the given values:
[tex]\[
\text{Commercials per hour} = \frac{15 \text{ commercials}}{1.5 \text{ hours}}
\][/tex]
4. Perform the division:
[tex]\[
\frac{15}{1.5} = 10
\][/tex]
Thus, the unit rate is:
[tex]\[ \boxed{10 \text{ commercials per hour}} \][/tex]
Therefore, the correct answer is:
[tex]\[ 10 \text{ commercials per hour} \][/tex]
