Question

an ice cream shop made $2,600 in ice cream sales last month, and $1,950 in ice cream sales this month. what was the percent decrease in ice cream sales? label the double number to represent this problem. 0 1,950 2,600 ice cream sales 0%

Explanation:

Step1: Find the decrease amount

Subtract this month's sales from last month's: $2600 - 1950 = 650$.

Step2: Calculate the percent decrease

Use the formula $\text{Percent Decrease} = \frac{\text{Decrease}}{\text{Original Amount}} \times 100\%$. Substitute values: $\frac{650}{2600} \times 100\% = 0.25 \times 100\% = 25\%$.

Step3: Label the double number line

• The top line (sales) has 0, 1950, 2600.
• The bottom line (percent) has 0%, then the percent for 1950: since 1950 is $2600 - 650$, and 650 is 25% of 2600, 1950 is $100\% - 25\% = 75\%$ of 2600. So the first box (under 1950) is 75%, the second (under 2600) is 100%.

Answer:

The percent decrease is 25%. For the double number line: the box under 1950 is 75%, the box under 2600 is 100%.