Question
Ryan has 1,500 yards of yarn. He wants to knit at least 2 scarves and at least 3 hats. Each scarf requires 300 yards of yarn, and each hat requires 120 yards of yarn. If s represents the number of scarves and h represents the number of hats, which of the following systems of inequalities represents this situation?
- s + h ≤ 1,500
s ≥ 2
h ≥ 2
- 2s + 3h ≤ 1,500
s ≥ 2
h ≥ 3
- 2s + 3h ≤ 1,500
s ≥ 300
h ≥ 120
- 300s + 120h ≤ 1,500
s ≥ 2
h ≥ 3
s ≥ 2 h ≥ 3
The correct answer is: 300s + 120h ≤ 1,500
s ≥ 2
h ≥ 3
HINT: From the information provided in the question, frame the inequalities.
Complete step by step solution:
Total yards of yarn Ryan has = 1500 yards
Number of scars is represented by s and number of hats is represented by h.
Total yards required for each scarf = 300 and this can be represented as 300s
Total yards required for each hat = 120 and this can be represented as 120h
This can be framed as the inequality 300s + 120h ≤ 1500…(i)
Number of scarves Ryan wants to knit is at least two and this can be represented as s ≥ 2…(ii)
Number of hats Ryan wants to knit is at least 3 and this can be represented as h ≥ 3…(iii)
So the 3 inequalities are :
300s + 120h ≤ 1500
s ≥ 2
h ≥ 3
Hence option D is the correct answer.
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