The unit rate of commercial to hours is 6 commercials per hour.
1/2 hour = 30 minutes
1 hour = 60 minutes
The number of commercials per half hour = 3
Therefore, the Number of commercials per hour will be :
(3 × (60/30)) = 3 × 2 = 6 commercials per hour
- Unit rate = number of commercial in an hour
- Unit rate of commercials = 6 commercials per hour
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