Answer :
Final answer:
To make the 80 servings of tuna salad, you will need 14 cans of 12oz chunk style, water packed tuna. For 3 lasagnas, you will need around 4.65 pounds of ricotta cheese.
Explanation:
Let's start with the tuna salad. You need 2oz of tuna per salad, and you're making 80 salads, so you'll need a total of 2oz * 80 = 160oz of tuna.
Chunk style, water packed tuna comes in 12oz cans, therefore, you will need 160 / 12 = approximately 13.33.
But you can't have a third of a can, hence you'll need 14 cans of tuna to make enough tuna salads.
Next is the lasagna. The recipe calls for 2 1/2 cups of ricotta cheese, and you're preparing 3 lasagnas, meaning you will need 2 1/2 cups * 3 = 7 1/2 cups of cheese.
Now, 1 cup of ricotta cheese generally weights about 0.62 pounds. Therefore you'd need 0.62 * 7.5 = 4.65 pounds of ricotta cheese for your lasagnas food preparation.
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