SOLUTION: A farmer had some chickens and some cows. She counted 40 heads and 126 legs. How many chickens and how many cows did she have.
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Question 405145: A farmer had some chickens and some cows. She counted 40 heads and 126 legs. How many chickens and how many cows did she have.
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
ch +co=40
co=40-ch
2ch+4co=126
2ch+4(40-ch)=126
2ch+160-4ch=126
-2ch=-34
ch=17 chickens
co=40-17=23 cows
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