Question

What is the actual distance of 9 cm on a map whose scale shows that 3 cm = 5 km?

A) 15 km
B) 12 km
C) 18 km
D) 21 km

Answer 1

I’m pretty sure it’s A) 15km

Answer 2

`\boxed{15 km}`

Explanation:

→ Write out the scale

3 cm = 5 km

→ Multiply everything by 3 to get 9 cm on the left side

9 cm = 15 km