he table below shows the total number of brake pads produced by machines throughout a 12-hour work day.
The table shows the number of brake pads produced in 3 hours is 48, 6 hours is 96, 9 hours is 144, and 12 hours is 192.
What is the unit rate for brake pads produced per hour?
A.
4 brake pads per hour
B.
3 brake pads per hour
C.
12 brake pads per hour
D.
16 brake pads per hour
To find the unit rate for brake pads produced per hour, divide the total number of brake pads produced by the number of hours worked.
The unit rate is calculated as follows:
Total number of brake pads produced / Number of hours = Unit rate
In this case, the total number of brake pads produced in 12 hours is 192. So the unit rate is:
192 / 12 = 16 brake pads per hour
Therefore, the correct answer is option D: 16 brake pads per hour.