Constraints are simply the subjects of an objective function.
The inequality that represents the constraint is: [tex]12x + 6y \le 20[/tex]
Represent the number of hats with x, and the number of scarves with y.
From the question, we have:
So, the equation of the total time spent is:
[tex]Time = 12x + 6y[/tex]
This time spent is not more than 20 hours.
So, the inequality is
[tex]12x + 6y \le 20[/tex]
Hence, the inequality that represents the constraint is: [tex]12x + 6y \le 20[/tex]
Read more about constraints at:
https://brainly.com/question/24574823