Question

gary is making a casserole but only needs 1/3 of the original serving size. if the number of servings gary needs is 4, how many servings did the original recipe make?
what equation will model the situation?
$\frac{x}{3}=4$
how many servings did the original recipe make?
4
7
12
24

Explanation:

Step1: Define variable for original servings

Let $x$ = original recipe servings.

Step2: Use given equation to solve

$$\frac{x}{3} = 4$$
Multiply both sides by 3:
$$x = 4 \times 3$$

Step3: Calculate final value

$$x = 12$$

Answer:

12