SOLUTION: There are 22 animals in the barn. Some are horses and some are chickens. There are 60 legs in all. How many of each animal are there?
Algebra ->
Linear-equations
-> SOLUTION: There are 22 animals in the barn. Some are horses and some are chickens. There are 60 legs in all. How many of each animal are there?
Log On
Question 476607: There are 22 animals in the barn. Some are horses and some are chickens. There are 60 legs in all. How many of each animal are there? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! There are 22 animals in the barn. Some are horses and some are chickens. There are 60 legs in all. How many of each animal are there?
---
animal equation: h + c = 22
leg equation::: 4h + 2c = 60
---------------------------------
Divide thru the leg equation by 2 to get:
h + c = 22
2h+ c = 30
-----
Subtract and solve for "h":
h = 8 (# of horses)
---
Solve for "c":
h + c = 22
8 + c = 22
c = 14 (# of chickens)
===========================
cheers,
Stan H.
===========
(