Entry Ticket Bring in the Subl: Solving Systems of Equations with 2 Variables
The Freshman class is selling sweatshirts and t-shirts for spirit week. They sold a total of
75 sweatshirts and t-shirts, 17 more t-shirts were sold than sweatshirts. If the sweatshirts
cost $20 and the t-shirts cost $10, how much money did the class make?
1a. Define the variables in this system
b. Create equations to describe the relationships in this system between the variables
2. Solve the system of equations.
3. Justify your answer.