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A class adviser surveys 35 of his students on the kind of pets they have at home. He found that 15 have dogs, 12 have cats, and 8 have birds. Five have dogs and cats, 4 have dogs and birds, and 2 have cats and birds. If no one has all three kinds of pets, how many students have none of these pets? Your answer

A class adviser surveys 35 of his students on the kind of pets they have at home. He found that 15 have dogs, 12 have cats, and 8 have birds. Five have dogs and cats, 4 have dogs and birds, and 2 have cats and birds. If no one has all three kinds of pets, how many students have none of these pets? Your answer

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A class adviser surveys 35 of his students on the kind of pets they have at home. He found that 15 have dogs, 12 have cats, and 8 have birds. Five have dogs and cats, 4 have dogs and birds, and 2 have cats and birds. If no one has all three kinds of pets, how many students have none of these pets? Your answer
Transcribed Image Text:A class adviser surveys 35 of his students on the kind of pets they have at home. He found that 15 have dogs, 12 have cats, and 8 have birds. Five have dogs and cats, 4 have dogs and birds, and 2 have cats and birds. If no one has all three kinds of pets, how many students have none of these pets? Your answer
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