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January 26, 2015

January 26, 2015

Posted by **Anonymous** on Tuesday, February 19, 2013 at 9:21pm.

- algebra -
**JJ**, Wednesday, February 20, 2013 at 9:54amYou solve this by creating a Venn Diagram with 3 intersecting circles.

Begin by putting the 4 where the 3 circles intersect.

When you are done, add up each part of all of the circles and you should get 70. If you get less than 70 that means customers purchased none of these and the difference between your total and 70 goes out side the circles.

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