February 20, 2017

Homework Help: algebra

Posted by babs on Friday, July 22, 2011 at 7:44pm.

A disc jockey must play 14 commercial spots during one hour of 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?
and thanks for everyones help I am having bad problems with this

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