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stef23 stef23
  • 24-05-2016
  • Mathematics
Answered

Can someone help me with this problem?

Can someone help me with this problem? class=

Verified Answer :

caylus
caylus caylus
  • 26-05-2016

Hello,

W: math homework reulary

A: B average or better

U:Univers 100%

W∩A= the answer
Or #(W∪A)+#(W∩A)=#W+#A
or #(W∪A)=100-40=60

==>60+x=48+55
==>x=43

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