Question

a certain recipe for trail mix calls for 2 cups of peanuts and 4 cups of raisins and makes 3 servings. ruby wants to make enough for 9 servings. how many cups of peanuts does she need?

Explanation:

Step1: Find the scaling factor

The original recipe makes 3 servings and Ruby wants 9 servings. The scaling factor is $\frac{9}{3}=3$.

Step2: Calculate cups of peanuts

The original recipe has 2 cups of peanuts. Multiply by the scaling factor: $2\times3 = 6$.

Answer:

6