A cycle in the graph below is HDGH.
A cycle is where a vertices, or corner, can be traced back to itself. HDGH starts with H and traces back to H on the same line.
Constraints are simply the subjects of an objective function.
The inequality that represents the constraint is: 
Represent the number of hats with x, and the number of scarves with y.
From the question, we have:
- He spends 12 hours to knit a hat
- He spends 6 hours to knit a scarf
So, the equation of the total time spent is:

This time spent is not more than 20 hours.
So, the inequality is

Hence, the inequality that represents the constraint is: 
Read more about constraints at:
brainly.com/question/24574823
1,2 liters of water = 1.200 millimeters so if he drinks 200 millimeters he has 1,000 millimeters left or 1 liter of water left
Answer:
x = 5
, −
4
Step-by-step explanation:
Solve the rational equation by combining expressions and isolating the variable x
.