Question

at the movie theater, the jumbo - size popcorn bags decreased by 20%. if the old bags held 25 cups of popcorn, how much popcorn do the new bags hold? the unknown value, which represents the new jumbo - size bag of popcorn, is labeled with a question mark on the double number line. write an equation to find the amount of popcorn the new bag holds. popcorn (cups) 0? 25 0% 20% 40% 60% 80% 100% 120% 25 + = - 80%? ·

Explanation:

Step1: Determine the percentage of the new amount

The old amount is 100% of the value (25 cups). A 20% decrease means the new amount is \(100\% - 20\% = 80\%\) of the old amount. So we use \(80\%\) (or \(0.8\)) of 25 to find the new amount.

Step2: Write the equation

To find \(80\%\) of 25, we use the multiplication operation. The equation is \(? = 25\times80\%\) (or \(? = 25\times0.8\)).

Answer:

\(? = 25\times80\%\) (or \(? = 25\times0.8\))