Mrs. smiths second grade class of thirty students conducted a pet ownership survey. result of the survey indicate that 8 students own a cat, 15 students own a dog, and 5 students own both a cat and dog. how many of the students suveyed own only a dog. ?
A 22 B 10 C15 D 18

Question

Mrs. smiths second grade class of thirty students conducted a pet ownership survey.  result of the survey indicate that 8 students own a cat, 15 students own a dog, and 5 students own both a cat and dog.  how many of the students suveyed own only a dog. ?
A 22   B  10   C15   D  18

anonymous · Answer

# with a dog = # with cat AND dog + # with ONLY a dog

anonymous · Answer

Huh

anonymous · Answer

Cannot be explained in any simpler terms without just giving away an answer.

anonymous · Answer

thanks for the help

anonymous · Answer

i got 15

anonymous · Answer

If you show your work, I can tell you whether you are right or not.

anonymous · Answer

15=8+5

anonymous · Answer

I don't know if what you just typed is a typo or not.  If it is not a typo and you think that the left side of your equation equals the right side, I cannot help you.  I would like to, but it would mean you are having trouble with adding, and I cannot help you there.