Final answer:
The goldsmith's production constraints are expressed as a system of inequalities, with conditions based on time limits and minimum production requirements of rings and necklaces, as well as the non-negativity of items produced.
Step-by-step explanation:
The goldsmith's time and profit constraints can be translated into several inequalities involving the number of rings (x) and necklaces (y) he can make. First, the time constraint for a maximum of 15 hours of work per day:
2x + 3y ≤ 15 (1)
He must make at least 3 rings and at least 2 necklaces:
x ≥ 3 (2)
y ≥ 2 (3)
Since he cannot make a negative number of rings or necklaces, we also have the non-negativity constraints:
x ≥ 0 (4)
y ≥ 0 (5)
To summarize, assuming the goldsmith makes x wedding rings and y necklaces, the following inequalities must hold:
- 2x + 3y ≤ 15
- x ≥ 3
- y ≥ 2
- x ≥ 0
- y ≥ 0