SOLUTION: I try working this problem and I'm still having problem please show me the step thank you so much
1.A survey of a group of people produced the following results: there were 35
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1.A survey of a group of people produced the following results: there were 35
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Question 198504: I try working this problem and I'm still having problem please show me the step thank you so much
1.A survey of a group of people produced the following results: there were 35 people with brown eyes and 24 people with blonde hair. If 14 people had both brown eyes and blonde hair and 27 people had neither, how many people were interviewed? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! First, draw a big circle that represents ALL the
people interviewed. Inside that cirle are two
smaller circles which have an overlap.
The smaller circles are:
(1) Everyone with brown eyes
(2) Everyone with blonde hair
The overlap is everyone with brown eyes and blonde hair
If I add (1) and (2), I get , but by doing this, I have added the
intersection between them twice, so I'll subtract it once.
14 people had both brown eyes and blonde hair, so
The people who had neither are all who are outside these
2 circles, but inside the bigger circle surrounding them.
There are of them
All the people interviewed = answer
