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Kitty [74]
3 years ago
13

In a poll of travelers, 85% said that traveling by air makes them nervous, and 450 travelers said that it does not make them ner

vous. How many travelers were polled?
Mathematics
2 answers:
hichkok12 [17]3 years ago
8 0
100% - 85% = 15%

So 15% said that it does NOT make them nervous.
We know this equals 450 people.

---> 15% of X = 450
---> 0.15X = 450
---> X = 450/0.15
---> X = 3000

Therefore a total of 3000 people were polled
OverLord2011 [107]3 years ago
5 0
The answer is 1,338 were polled
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Step-by-step explanation:

Given:

        n(A) = 150

        n(B) = 200

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so we know the relation as:

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∴ n(A∩B∩C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(A∩C)  - n(A∪B∪C)

                    = 150 + 200+ 156 - 48 - 60 - 52 - 300

                   = 46

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Answer:

Step-by-step explanation:

4/5

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