A farmer has chickens and cows. If there are 20 heads and 56 legs in total, how

A farmer has chickens and cows. If there are 20 heads and 56 legs in total, how many cows are there?

A farmer has chickens and cows. If there are 20 heads and 56 legs in total, how many cows are there?

Systems of Equations – The problem tests the ability to set up and solve a system of linear equations based on given conditions.
Word Problems – The question requires translating a real-world scenario into mathematical equations.
Counting and Basic Algebra – It involves basic counting principles and algebraic manipulation to find the solution.