3. Ron Co. sold sweatshirts for $20 and baseball caps for $10. A total of 154 sweatshirts and baseball caps were sold for total sales of $2,860. How many of each did Ron Co. sell? Check your answer.
1) Set up system of equations like: x+y=154 20x+10y=2860 2) Solve x+y=154 -2x-y=-286 -x=-132 x=132 132+y=154 y=22 3) Substitute answers into variables and check.