Final answer:
The recipe uses a total of 44 ounces of milk combined and 3 1/2 ounces of sweetened condensed milk per serving, amounting to 28 ounces in total. Subtracting this from the total milk gives 16 ounces for the whole milk needed for the recipe. Dividing the whole milk by the total servings, Bruno uses 2 ounces of whole milk per serving.
Step-by-step explanation:
For Bruno to make the recipe for arroz con leche, he needs to understand the correct proportions of whole milk and sweetened condensed milk. The recipe requires a total of 44 ounces of milk, both whole milk and sweetened condensed milk combined. We know that each of the 8 servings requires 3 1/2 ounces of sweetened condensed milk, which totals to 28 ounces when multiplied by 8 servings (3.5 ounces/serving × 8 servings = 28 ounces). To find the amount of whole milk for the entire recipe, we subtract the sweetened condensed milk amount from the total amount of combined milk: 44 ounces - 28 ounces = 16 ounces of whole milk for the recipe. To determine the amount of whole milk per serving, we divide the total whole milk by the number of servings: 16 ounces/8 servings = 2 ounces of whole milk per serving.