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2 years ago

Janice has 15 pets. Each of her pets is either a dog or a bird. If her pets have a total of 38 legs, how

Mathematics

1 answer:

balu736 [363]2 years ago

3 0

Hi!

These can be set up as systems of equations.

Let b = the number of birds, and let d = the number of dogs.

b + d = 21

2b + 4d = 76 (this is because birds have 2 legs and dogs have 4 legs.)

You can solve this using either elimination or substitution.

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