Math

A farmer kept track of his cows and chickens by counting both the legs and the heads, if he counted 78 legs and 35 heads, how many cows and how many chicken did he own?

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  1. 4 w + 2 k = 78

    w + k = 35

    solve the system for coWs and chicKens

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  2. suppose they were all chickens. That would require 35*2 = 70 legs

    You have 8 extra legs.
    Each chicken you replace with a cow requires 2 extra legs.
    So, it looks like 4 of the 35 animals are cows.

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