The scale factor of A to B can be expressed as A:B.
Felix is correct, see solution.
Practice makes perfect
We are given that Felix and Tamara are building a 1.5 feet tall replica of their high school, which is 75 feet tall. Let's recall that the scale factor of A to B can be expressed as A:B. We will use this information to evaluate the scale factor of the actual high school to the replica.
The scale factor of the actual high school to the replica is 75: 1.5.
We can simplify the scale factor by dividing both sides by 1.5.
75:1.5 ⇒ 50:1
The scale factor is 50:1, so Felix is correct. However, Tamara is not correct as she changed the order of heights.
