Homework Help: math

Posted by alexi on Thursday, November 11, 2010 at 6:55pm.

at breakfast buffet, 93 people chose coffee for there beverage and 47 people choe juice. Twenty-five people chose both. Each person chose at least one of these beverages. how many visted the buffet

math - Reiny, Thursday, November 11, 2010 at 7:23pm
Number(A or B) = Number(A) + Number(B) - Number(A and B)
= 93 + 47 - 25
= .....

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