To find the unit rate of parts manufactured per hour, we can divide the total number of parts by the total number of hours.
Given:
- Total parts = 1116
- Total hours = 7
The calculation will be:
\[ \text{Unit rate} = \frac{\text{Total parts}}{\text{Total hours}} = \frac{1116}{7} \]
Now performing the division:
\[ \frac{1116}{7} \approx 159.42857 \]
Rounding to the nearest integer gives us:
\[ \text{Unit rate} \approx 159 \]
Therefore, the unit rate for the number of parts manufactured per hour is 159 parts per hour.