Final answer:
Dracula will need 48 quarts of iced tea concentrate.
Step-by-step explanation:
To find out how much-iced tea concentrate Dracula will need, we can set up a proportion. If 4 quarts of iced tea concentrate is mixed with 5.5 quarts of water to make 66.5 quarts of iced tea, then we can say:
4 quarts / 5.5 quarts = x / 66.5 quarts
To solve for x, we can cross multiply:
4 * 66.5 = 5.5 * x
Simplifying the equation gives us:
x = (4 * 66.5) / 5.5
x = 48 quarts