February 26, 2017

Homework Help: math

Posted by mi on Wednesday, September 1, 2010 at 7:09pm.

paulina gets on an elevator. at the first stop, 4 people get off and 3 get on. at the second stop, 5 people get off and one gets on. at the third stop, paulina gets off. if 4 people are still in the elevator when paulina gets off, how many people were on the elevator when she got on?

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