Question

Each inch on a map of Roswell, New Mexico represents $0.51\text{ mile}$. If two hills in Roswell are $7$ inches apart on the map, then how many miles apart are they in real life? Enter your answer as a decimal, without units.

Answer 1

`3.57`

Explanation:

we know that

The scale factor on a map is equal to

`(1)/(0.51)(inch)/(miles)`

so

by proportion

Find how many miles are in the real life
`7` inches apart on the map

`(1)/(0.51)(inch)/(miles)=(7)/(x)(inches)/(miles)\\ \\x=0.51*7\\ \\x=3.57 \ miles`