Final answer:
The specific amount of chocolate syrup Elina used is indeterminable without the recipe or ratio; however, we discussed how mathematical ratios are used to determine the proportion of ingredients needed in a recipe, such as with the pancake example mentioned.
Step-by-step explanation:
The question posed doesn't provide enough information to directly calculate how much chocolate syrup Elina used to make her glass of chocolate milk. However, we can discuss a general approach to solving such a problem in mathematics. If we had a recipe or a ratio, like we have for the pancake example provided, we could determine the amount of each ingredient in proportion to each other. For pancakes, the recipe requires 2 cups of pancake mix, 1 egg, and ½ cup of milk to make one batch. If there are 9 cups of pancake mix, we use unit cancellation to find the amounts of the other ingredients needed, ending up with 4½ eggs and 244 cups of milk.
In the context of chocolate syrup and milk, if we knew the ratio of syrup to milk that Elina prefers for her chocolate milk, we would use a similar method. For instance, if we assume that her preferred ratio is 1 tablespoon of chocolate syrup for every 1 cup of milk, and she made an 8 oz glass (½ cup of milk), then Elina would likely use ½ tablespoon of chocolate syrup. Without the actual ratio or recipe, we can only hypothesize about the amount.