
Ron G. answered 04/22/16
Tutor
4.4
(26)
Multiple levels Math, Science, Writing
Big cage. LOL But OK. Let R = rabbits and C = chickens.
Rabbits and chickens each have one head apiece.
So your heads equation is
R + C = 72
But rabbits have four feet and chickens two.
So your feet equation is
4R + 2C = 200 or 2R + C = 100 after dividing by 2.
Now, if you subtract your heads equation from your feet equation you get R = 28. That's your number of rabbits. Meaning you have 44 chickens.
Cheers!