Answer: To determine what part of the brownie recipe you can make with the amount of sugar you have, we need to calculate the ratio of the sugar you have to the sugar required in the recipe.
Amount of sugar you have = 1.75 cups
Amount of sugar required in the recipe = 2.5 cups
Now, let's calculate the ratio:
Ratio = (Amount of sugar you have) / (Amount of sugar required in the recipe)
Ratio = 1.75 cups / 2.5 cups
Now, we can simplify the ratio:
Ratio = 7/10
So, you have 7/10 or 70% of the amount of sugar required for the brownie recipe. Therefore, you can make 70% of the recipe using the amount of sugar you have.