Question

On a map, 90 miles is represented by 3 inches.

A measure of inch on the map would represent miles

Answer 1

Hmm, where are you confused here?

Answer 2

it suposed to measure of an half inch on the map

Answer 3

Ok, I'd start with proportions for basic understanding.

\( \color{Black}{\Rightarrow 3:90=0.5:x }\)

Answer 4

Do you know how to solve proportions?

Answer 5

oh yes

Answer 6

Can you manage now? :)