Question

at the grocery store, the jumbo - sized boxes of berries decreased by 20%. if the old boxes held 40 ounces of berries, how much do the new boxes hold? identify and label the point on the double number line that represents the amount of berries the old jumbo - size boxes held. berries (ounces) 0% 20% 40% 60% 80% 100% 120%

Explanation:

Step1: Find the percentage of new amount

The old amount is 100% (since it's the original), and it decreased by 20%, so the new percentage is $100\% - 20\% = 80\%$.

Step2: Calculate the new amount

The old amount is 40 ounces. To find 80% of 40, we use the formula $\text{New Amount} = \text{Old Amount} \times \frac{\text{New Percentage}}{100}$. So, $40 \times \frac{80}{100} = 40 \times 0.8 = 32$.
For the double number line, the old amount (40 ounces) corresponds to 100% on the percentage line, so we label the point on the ounces line that aligns with 100% on the percentage line as 40 ounces.

Answer:

The new boxes hold 32 ounces. The point on the double number line representing the old amount (40 ounces) is the one aligned with 100% on the percentage number line.