Question

You are buying two kinds of notebooks for school. A three-ring notebook costs $6, and a spiral notebook costs $3. You must have at least five notebooks. The cost of the notebooks can be no more than $24. Which system of inequalities, along with y>=0 and x=0, would you use to solve the real-world problem?

Answer 1

x = 3 ring notebook
y = spiral notebook

6x + 3y < = 24 (thats less then or equal)
x + y = 5
0 < = x < = 5
0 < = y < = 4

Answer 2

The correct answer is:

y ≥ -x + 5

y ≤ -2x + 8