February 26, 2017

Homework Help: Math

Posted by Unknown on Wednesday, March 27, 2013 at 5:36am.

Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir with Mr. Green. Use the Venn diagram below:

a. How many students take exactly 2 classes from Mr.Green?

Venn Diagram: There are 11 in the Band section
17 in the Choir section
7 in the Band AND Math section
And 3 in the Math, Band, AND Choir section

I'm have been stuck on this question and it's really stressing me out a bit, I just need some hints.

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