A visitor to a petting zoo notices there are a total of 20 llamas and chickens. She also notices there are a total of 64 legs. How many chickens were there?

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter1: Foundations
Section1.10: Systems Of Measurement
Problem 1.287TI: Laura gave birth to triplets weighing 3 pounds 3 ounces, 3 pounds 3 ounces, and 2 pounds 9 ounces....
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A visitor to a petting zoo notices there are a total of 20 llamas and chickens. She also notices there are a total of 64 legs. How many chickens were there?

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