SOLUTION: Let n(C) represent the number of elements in the set C. If n(A intersect B) is 17 and n(A union B)-n(B) is 17, what is n(A)?
I was trying to do n(A union B) -n(B) = n(A) -17
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-> SOLUTION: Let n(C) represent the number of elements in the set C. If n(A intersect B) is 17 and n(A union B)-n(B) is 17, what is n(A)?
I was trying to do n(A union B) -n(B) = n(A) -17
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Question 972043: Let n(C) represent the number of elements in the set C. If n(A intersect B) is 17 and n(A union B)-n(B) is 17, what is n(A)?
I was trying to do n(A union B) -n(B) = n(A) -17
17 = n(A) - 17
34 = n(A)
Is that right? Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website! n(A union B) = n(A) + n(B) - n(A intersect B)
n(A union B) - n(B) = n(A) - n(A intersect B)
17 = n(A) - 17
17 + 17 = n(A)
34 = n(A)
n(A) = 34
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