Question

long grove elementary school holds a bake sale every year. this year, 20 students volunteered to sell baked goods. that is twice as many students as last year. how many students volunteered to sell baked goods last year?

Explanation:

Step1: Define the variable

Let \( x \) be the number of students who volunteered last year.

Step2: Set up the equation

This year, the number of students is twice that of last year, and this year there are 20 students. So the equation is \( 2x = 20 \).

Step3: Solve for \( x \)

To find \( x \), divide both sides of the equation by 2: \( x=\frac{20}{2}=10 \).

Answer:

10