Question

Please help me finish this question

Answer 1

C and then D

Explanation:

s = number of small pillow cases

l = number of large pillow cases

s + l >= 10 (but at least 10 cases)

8s + 12l <= 100 (cannot spend more than $100)

remember, every small pillow case costs $8, every large $12.

so, answer C.

8×12 + 3×8 = $120

so, that's not possible.

4×12 + 7×8 = 48 + 56 = $104

so, that's not possible.

6×12 + 3×8 = 72 + 24 = $96

that would work but

6 + 3 = 9 which is not >= 10

so, that's not possible.

2×12 + 9×8 = 24 + 72 = $96

2 + 9 = 11

so, that (D) is a valid solution.

Answer 2

Explanation:

You need to look carefully at the inequality signs in the first question. Thew amount of pillowcases she buys needs to be AT LEAST 10, but the maximum amount of money she can spend is 100. So I think C would be the best answer.