Math
posted by Denise .
From a survey of 100 college students, a marketing research company found that 60 students owned iPods, 50 owned cars, and 20 owned both cars and iPods.
(a) How many students owned either a car or an iPod (but not both)?
1 students
(b) How many students do not own either a car or an iPod?
2 students

Math 
Reiny
Are you supposed to do these with Venn diagrams?
If so, draw two intersecting circles, name one P the other one C (for pod and car)
place 20 in the intersection of the two circles
There are supposed to be 60 in the P circle, but we already have 20 of those accounted for.
So put 40 in the P circle which does not intersect the other circle
There are supposed to be 50 in the C circle, but we have already placed 20 of those, so put 30 in the C circle not intersecting with any of the other.
number of students in the C and P circle , but not in the intersection is
40 + 30 = 70
The total I see in both circles is 40 + 20 + 30 = 90
But 100 students were surveyed, so
10 students are not in either circle, thus
10 students do not own a car or Ipod
Respond to this Question
Similar Questions

ALGEBRA
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)? 
College math
From a survey of 100 college students, a marketing research company found that 60 students owned iPhones, 30 owned cars, and 25 owned both cars and iPhones. (a) How many students owned either a car or an iPhone (but not both)? 
math
From a survey of 100 college students, a marketing research company found that 85 students owned iPods, 45 owned cars, and 35 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)? 
venns diagrams
From a survey of 100 college students, a marketing research company found that 50 students owned iPods, 50 owned cars, and 20 owned both cars and iPods. 
ALGEBRA
From a survey of 100 college students, a marketing research company found that 35 students owned iPods, 25 owned cars, and 5 owned both cars and iPods How many students owned either a car or an iPod (but not both)? 
math
From a survey of 100 college students, a marketing research company found that 65 students owned iPods, 35 owned cars, and 25 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)? 
math
From a survey of 100 college students, a marketing research company found that 55 students owned iPods, 25 owned cars, and 15 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)? 
algebra
From a survey of 100 college students, a marketing research company found that 65 students owned ipods, 45 owned cars, and 15 owned both cars and Ipods. (a) How many students owned either a car or an ipod (but not both)? 
Algebra
From a survey of 100 college students, a marketing research company found that 45 students own ipods, 45 owned cars and 25 owned both cars and ipods. How man students owned either a car or an ipod (but not both) and how many do not … 
algebra
From a survey of 100 college students, a marketing research company found that 70 students owned iPods, 50 owned cars, and 40 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)?