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September 21, 2014

September 21, 2014

Posted by **Jen** on Thursday, July 7, 2011 at 11:40pm.

- MATH -
**Reiny**, Friday, July 8, 2011 at 12:19amuse Venn diagrams.

draw two intersecting circles, label one P , the other C

place 5 in the intersection of the two circles

place 18 in the P circle outside the intersection, (notice you have a total of 23 in P)

place 42 in the C circle outside the intersection,

(notice you have a total of 47 in C)

add them up: 18+5+42 = 65

or

N(P OR C) = N(P) + N(C) - N(P AND C)

= 23+47-5

= 65

- MATH -
**Jen**, Friday, July 8, 2011 at 12:23amhmmmmmm im kind of getting it.....but for some reason when i did it my answer was 72....geometry is not my best subject haha

- MATH -
**Ron**, Friday, July 8, 2011 at 5:22am72 is right. Reiny forgot to add 7 who said they had taken neither.

65 + 7 = 72

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