Homework Help: ALGEBRA

Posted by MONICA on Sunday, November 20, 2011 at 5:34pm.

From a survey of 100 college students, a marketing research company found that 65 students owned iPhones, 40 owned cars, and 30 owned both cars and iPhones.
(a) How many students owned either a car or an iPhone (but not both)?

ALGEBRA - Lee, Sunday, November 20, 2011 at 8:10pm
65/100 had iPhones of those 65-30 had car too so 35 only had iPhone

40/100 had cars of those 40-30 had iPhone too so 10 only had car

35 + 10 = 45 only had iPhone OR car
ALGEBRA - Anonymous, Tuesday, January 22, 2013 at 2:44pm
From a survey of 100 college students, a marketing research company found that 65 students owned iPods, 45 owned cars, and 25 owned both cars and iPods.
(a) How many students owned either a car or an iPod (but not both)?
students

(b) How many students do not own either a car or an iPod?
students
ALGEBRA - Anonymous, Monday, February 4, 2013 at 8:58pm
From a survey of 100 college students, a marketing research company found that 50 students owned iPods, 30 owned cars, and 20 owned both cars and iPods.

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