Katie uses 2 cups of carrots in a casserole that serves 12 people. How many cups of carrots will she use to serve 18 people?

Responses
A 1 cup1 cup
B 3 cups3 cups
C 4 cups4 cups
D 112
cups

B 3 cups

To find out how many cups of carrots Katie will use to serve 18 people, we can set up a proportion:

2 cups of carrots / 12 people = x cups of carrots / 18 people

To solve for x, we can cross-multiply:

12 * x = 2 * 18

12x = 36

Divide both sides of the equation by 12:

x = 36 / 12

x = 3

Therefore, Katie will use 3 cups of carrots to serve 18 people.

So, the correct answer is B) 3 cups.