Madison takes her dog to the dog park. Counting Madison's dog, half the dogs have spots and 1/5 have pointy ears. If 15 dogs have spots, how many have pointy ears?
First double the number of dogs with spots to find the total number of dogs: 15 dogs * 2 = <<15*2=30>>30 dogs
Then multiply that number by 1/5 to find the number that have pointy ears: 30 dogs * 1/5 = <<30*1/5=6>>6 dogs
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