February 27, 2017

Homework Help: Math

Posted by Anonymous on Monday, September 20, 2010 at 10:17pm.

a disc jockey must play 14 commercial spots during 1 hour of a radio show.Each commercial is either 30 seconds or 60 seconds long. If the total commercial time during 1 hour is 11 min, how many 30-second commercials were played that hour. How many 60-second commercials.

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