If there are 196 legs and 126 eyes at the dog show, how many people and how many dogs are present? (all the people have two eyes and two legs, and all the dogs at the show have two eyes and four legs.)

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

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