Tickets for the acquaintance party were 80$ for a single ticket or 150$ for a pair. If 144 students attended the party and 10,980$ was collectred from ticket sales. How many pairs and how many singles attended?

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- October 19th 2009, 09:50 AM #1

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- October 19th 2009, 09:59 AM #2

- October 19th 2009, 10:05 AM #3