Question

(c) When Mr. and Mrs. Ferguson arrive at their room, Mr. Ferguson decides to check whether the measurement on the website is correct. He measures the side labeled 5 in. on the drawing and finds that it is 13 ft long in the room. Is the scale on the drawing, 1 in. = 2.5 ft, correct? If not, what should the scale be? Show your work.

Answer 1

Find the proportion or the scale for inches to feet.
5 in / 13 ft
You can simply that further by dividing both sides by 5.
1 in / 2.6 ft

The scale 1 in = 2.5 ft is incorrect because it should be 1 in = 2.6 ft instead.

Hope this helps :)