Solution
- Let x be the number small pizzas and y be the number of large pizzas.
- We are told that small pizzas have 10 olive pieces and the large pizzas have 15 olive pieces and that there are a total of 60 olive pieces. This means that she cannot make use of more that 60 olive pieces, but she can use less than 60.
- Thus, we have that:
- Next, we are told that small pizzas use 15 mushroom pieces, large pizzas use 45 mushroom pieces, while, there are a total of 135 mushroom pieces. Using the same logic as before:
- Lastly, we are told that $1.50 from each small pizza and $2.50 from each large pizza.
- But we also know that Stacy makes small and large pizzas, thus, we know that they can either be 0 or less.
- That is,