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Ana saw some kitten and baby chicks for sale when she went to the pet store. altogether she counted 16 heads and 46 legs. how many of each did ana see at the pet store?

 Jan 17, 2020
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Assuming there are no birth defects

  kittens have 4 legs   and 1 head         4k    and     k     is kitten heads

Chickens have 2 legs    2c = chicken legs   c = chicken heads

 

 

4k + 2c = 46

k+c = 16                   two equations and two unknowns

 

Multiply second equation by -2

-2k - 2c = -32       and add it to the forst equation

to get

2k = 14

k = 7       then        k+ c = 16   means   c = 9  

 Jan 17, 2020

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