Question

On a map drawn to scale, 5 cm represents 30 kilometers. If a line a the same map that connects 2 cities is 7 cm long, what is the distance between the 2 cities?

Answer 1

42

Explanation:

You can use proportions to solve this problem.

`(5cm)/(30km)`=
`(7cm)/(xkm)`

Now just cross multiply.

5cm*Xkm=7cm*30km

you can simplify the cm and km since its multipying.

5x=210

x=42