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April 19, 2014

Homework Help: ALGEBRA

Posted by Monic on Wednesday, May 16, 2012 at 8:09pm.

From a survey of 100 college students, a marketing research company found that 70 students owned iPhones, 30 owned cars, and 15 owned both cars and iPhones.
(a) How many students owned either a car or an iPhone (but not both)?
students

(b) How many students do not own either a car or an iPhone?
students

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