To answer your questions regarding the families who own pets in Lincoln Valley neighborhood, let's go through each part step by step.
Part (a): Create a Double Number Line
A double number line can be helpful in visualizing the relationship between the number of families and the percentage of families who own pets. Here is a simple representation you can visualize:
Families: 0 60 100 200
|----------|---------|--------|
Percentage: 0% 30% 50% 100%
In this representation:
- 60 families out of 200 families own pets.
- At 200 families, 100% is represented.
- To find the percentage, we can identify what percentage corresponds to 60 families.
Part (b): What Percentage of the Families Own Pets?
To find the percentage of families that own pets, we can use the following formula:
\[ \text{Percentage} = \left( \frac{\text{Number of families with pets}}{\text{Total number of families}} \right) \times 100 \]
Substituting values:
\[ \text{Percentage} = \left( \frac{60}{200} \right) \times 100 \]
\[ \text{Percentage} = 0.3 \times 100 = 30% \]
Therefore, \(30%\) of the families in the Lincoln Valley neighborhood own pets.