Final answer:
To make the playoffs, the team needs to accumulate at least 20 points. The equation to describe the values of wins and ties is 2w + t ≥ 20.
Step-by-step explanation:
To make the playoffs, the team needs to accumulate at least 20 points. They get 2 points for a win and 1 point for a tie. Let 'w' be the number of wins and 't' be the number of ties. The equation that describes the values of 'w' and 't' that will let them make the playoffs is 2w + t ≥ 20.