Question

what is the missing length in the scaled copy? units 90 × ? = 30 scale factor length in original. scale factor = length in scaled copy an error has occurred. please enter a number.

Explanation:

Step1: Find the scale factor

We know that \(90\times scale\ factor = 30\). To find the scale factor, we use the formula \(scale\ factor=\frac{30}{90}=\frac{1}{3}\).

Step2: Calculate the missing length

The length in the original is \(45\). Using the formula \(length\ in\ original\times scale\ factor = length\ in\ scaled\ copy\), we substitute the values. Let the missing length be \(x\). Then \(x = 45\times\frac{1}{3}\).

$$x=\frac{45}{3}=15$$

Answer:

\(15\)