SOLUTION: Please help me sole this problem:
There are 13 animals in a barn. Some are chickens and some are pigs. There are 40 legs in the barn. How many are there of each animal?
Question 486431: Please help me sole this problem:
There are 13 animals in a barn. Some are chickens and some are pigs. There are 40 legs in the barn. How many are there of each animal? Answer by Tatiana_Stebko(1539) (Show Source):
You can put this solution on YOUR website! Let x chickens
Let y pigs
Then
The animals have legs, so
The system of the equations
divide the second equation by 2
Subtract the first equation from the second one pigs
Substitute into the first equation chickens