Question

michaela would like to construct a fence around her house. the scale on her property map is 1 inch to 3 feet. if the perimeter of her property on the map is 15 inches, how many feet of fencing will she need? ? feet

Explanation:

Step1: Set up the proportion

Let \( x \) be the actual perimeter in feet. The proportion is \(\frac{1\ \text{inch}}{3\ \text{feet}}=\frac{15\ \text{inches}}{x\ \text{feet}}\).

Step2: Cross - multiply and solve

Cross - multiplying gives \(1\times x = 3\times15\).
So \(x = 45\).

Answer:

45