document.write( "Question 380289: Mrs. Ballo's second grade class of 30 conducted a survey of pet ownership and found: 8 students owned a cat, 15 owned a dog and 5 owned both. How many of the students owned no dogs?\r
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Algebra.Com's Answer #269950 by kingme18(98)\"\" \"About 
You can put this solution on YOUR website!
Your answer is the number of students who owned cats. You forgot about the students who don't own any pets. There are 8 + 15 + 5 = 28 students with pets, so there are 30 - 28 = 2 without pets. Thus, the number without dogs is 8 + 2 = 10. \n" ); document.write( "
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