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there are 40 students in a class, 23 have dark hair, 18 have brown eyes and 26 have dark hair, brown eyes or both how many students have neither dark nor brown eyes ( problem solving with venn diagrams chapter)

Respuesta :

D is the set of people with dark hair
B is the set of people with brown eyes
 
the rectangle is the entire class....

[tex]x+y+z=26 \\40-(x+y+z)=40-26=14[/tex]
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Answer:

56

Step-by-step explanation:

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