Question

Joe has a farm with 30 animals. If he has chickens and cows with a total of 100 legs, how many chickens and cows does Joe have? (hint.....chickens have 2 legs and cows have 4) The system used to solve this would be and why?

x+y=30
or
2x+4y=100

Answer 1

I’m pretty sure it would have to be 2x+4y=100