Question

A cafeteria charges a fixed price per ounce for the salad bar. A sandwich costs $3.10, and a drink costs $1.75. If a 7-ounce salad and a drink cost the same as a 4-ounce salad and a sand which, how much does the salad cost per ounce?

Answer 1

1 ounce of salad = s
7s + 1.75 = 4s + 3.10
- 4s
3s + 1.75 = 3.10
- 1.75
3s = 1.35
÷ 3
s = $0.45
Hope this helps!