long grove elementary school holds a bake sale every year. this year, 20 students volunteered to sell baked…
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?
Answer
Explanation:
Step1: Set up the equation
Let $x$ be the number of students who volunteered last year. We know that this year 20 students volunteered and this is twice as many as last year. So the equation is $2x = 20$.
Step2: Solve for $x$
Divide both sides of the equation by 2. $x=\frac{20}{2}$.
Answer:
10