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 the proportion

Let \(x\) be the height of the actual robot. The proportion is \(\frac{1\space\text{inch}}{2\space\text{feet}}=\frac{5\space\text{inches}}{x\space\text{feet}}\).

Step2: Cross - multiply

\(1\times x = 2\times5\).

Step3: Solve for \(x\)

\(x = 10\).

Answer:

\(10\)