Final answer:
Nicole will use 3/4 pint of cream for 15 ounces of mushrooms. This was calculated by determining that she is making three times the original recipe and scaling the quantity of cream accordingly.
Step-by-step explanation:
To determine how much cream Nicole uses when she scales up her mushroom soup recipe from 5 ounces of mushrooms to 15 ounces, we need to set up a proportion based on the quantities given. She originally uses 1/4 pint of cream for 5 ounces of mushrooms.
First, we find the factor by which the amount of mushrooms has been increased: 15 ounces ÷ 5 ounces = 3. This means Nicole is making 3 times the original recipe.
Next, we multiply the amount of cream by this factor to find the new quantity for the increased recipe:
1/4 pint × 3 = 3/4 pint
Therefore, Nicole will use 3/4 pint of cream for 15 ounces of mushrooms.