Question

Nate measured an apartment and made a scale drawing. The living room is 2 millimeters long in the drawing. The actual living room is 10 meters long. What scale factor does the drawing use?
Simplify your answer and write it as a ratio, using a colon.

Answer 1

Alright! So, we know that in his drawing the living room is 2 millimeters long, and in reality it is 10 meters long. So, to find out how much 1 millimeter is we divide 10 by 2.

[10 ÷ 2] = 5. 

One millimeter is 5 meters in reality.

The ratio is 1:5