Finite math how do i find the total for a

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In finite math how do I find the total for A. for example Let A and B be subsets of a universal set U and suppose n (U)= 350; n(A)=120, n(B)=80, and n(A intersect B)=50. How do I divide the intersect to get a number for all of A.

Reference no: EM132049568

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