“Farmer Fred’s Animal Math: Solving for Cows and Ducks”

Cows and Ducks
Farmer Fred is back!  He tries not to clutter his mind with details, but he does think it’s important to know how many animals he has and how manyfeet those animals have.   He thinks he remembers having 54 animals with 122 feet.  How many of each type of animal does Fred have?
Student A:  Write two equations that you know based on what Fred remembers.
Student B:  Solve with graphing
Student C:  Solve with substitution
Student D:  Solve with elimination
All students:  Check the work of your group members and ask questions if you do not agree.