Math - Scale Drawings

Question

The scale of a map says that 4 cm represents 5 km.

a.What distance on the map (in centimeters) represents an actual distance of 4 kilometers?

b.What is the actual number of kilometers that is represented by 5 centimeters on the map?

Answer 1

These are proportion problems.

I will solve the first for you then you shlould be able to solve the second.

4cm:5km = x cm:/4 km => 4/5 = x/4 => x = 16/5