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Question 320381: A radio jockey played 12 commercial spots during a 1 hour radio show. Each commercial is either 30 seconds or 60 seconds long. If the total commercial time during 1 hour is 8 minutes, how many 30 second commercials were played that hour? How many 60 second commercials?
Answer by nyc_function(2741)   (Show Source):
You can put this solution on YOUR website! that question doesn't give enough information
commercials can be either 30 seconds or 60 seconds
theres 8 minutes, or 480 seconds for commercials
you can have all the commercials be 60 seconds, which would be 8 of them, or all 30 seconds which would be 16 of them.
but heres an equation
X(30)+Y(60)=480
X=number of 30 second commercials
Y=number of 60 second commercials
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