SOLUTION: A math teacher drove past a farmyard full of chickens and pigs. The teacher noticed that there were a total of 30 heads and 100 legs. How many pigs were there?

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Question 778058: A math teacher drove past a farmyard full of chickens and pigs. The teacher noticed that there were a total of 30 heads and 100 legs. How many pigs were there?
Answer by solver91311(24713) About Me  (Show Source):
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Assuming no 2-headed chickens and no 3-legged pigs:





Solve the 2X2 system. Report the value of

John

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