Algebra 1
posted by danny .
a farmer raises chickens and cows. there are 34 animals in all. the farmer counts 110 legs total on these animals. how many chickens and how many cows are on this farm?

cows  > x
chickens > y
x+y = 34
4x + 2y = 110 or 2x + y = 55
subtract them
x = 21
so 21 cows and 13 chickens , total = 34
check:
cowlegs = 84
chickenlegs = 26
total =s 110