20 speak11. Of 1100 students at PHS, 400 attend the first school dance of the year, and 550 attend the secondschool dance of the year. If 275 attended both dances, how many students at the school did not attendeither dance?

Answered: Image /qna-images/answer/a1394255-2425-49a3-9530-7c8bbb99481a.jpg

Answered: 20 speak 11. Of 1100 students at PHS,…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter7: Percents

Section7.3: Percents And Decimals

Problem 17C

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20 speak 11. Of 1100 students at PHS, 400 attend the first school dance of the year, and 550 attend the second school dance of the year. If 275 attended both dances, how many students at the school did not attend either dance?