Question

problem 5
here is the map from the previous screen.
on the map, the school and the playground are 12 centimeters apart.
what is the actual distance between the school and the playground?
scale: 4 cm to 5 km

Explanation:

Step1: Set up proportion

Let $x$ be the actual distance in km. The scale is 4 cm to 5 km, and the map - distance is 12 cm. So the proportion is $\frac{4}{5}=\frac{12}{x}$.

Step2: Cross - multiply

$4x = 12\times5$.

Step3: Solve for $x$

$4x=60$, then $x=\frac{60}{4}=15$.

Answer:

15 km