Question

a model robot uses the scale 1 inch : 2 feet. if the model robot is 5 inches tall, how tall is the actual robot? ? feet

Explanation:

Step1: Set up proportion

Let $x$ be the height of the actual robot in feet. The proportion is $\frac{1}{2}=\frac{5}{x}$.

Step2: Cross - multiply

$1\times x = 2\times5$.

Step3: Solve for $x$

$x = 10$.

Answer:

10