# avd. math

posted by
**taylor** on
.

farmer joe needs cows pigs an chickens

cows cost 10.00 each and pigs cost .50 cents each,an chickens are 10 cents.he needs 100 animals an he only has 100 dollars .

let x=cow, y=pig, and z=chicken

10x + .5y +.1z = 100

x + y + z = 100

substitute & get the answer.