Question

at quinns popcorn stand, customers can scoop their own popcorn and pay by the ounce. ten ounces of popcorn costs $2.50. how much popcorn can a customer buy per dollar?

Explanation:

Step1: Find the cost per ounce

We know that 10 ounces cost $2.50. To find the cost per ounce, we divide the total cost by the number of ounces. So the cost per ounce $c=\frac{2.50}{10}= 0.25$ dollars per ounce.

Step2: Find the amount of popcorn per dollar

If 1 ounce costs $0.25, then to find out how many ounces $x$ we can buy with 1 dollar, we use the formula $x=\frac{1}{0.25}$. Since $\frac{1}{0.25}=\frac{1}{\frac{1}{4}} = 4$ ounces.

Answer:

4 ounces