Question

A scale for a map states that 2 inches equals 25 miles. If the distance from Dallas to Houston on the map is 19.2 inches, what is the actual distance, in miles, between Dallas and Houston? ***Set up a PROPORTION*

Answer 1

240

Explanation:

Answer 2

240

Explanation:

`(inches)/(miles)\\(2)/(25)=(19.2)/(?)`

When doing proportions you multiply the numerator of one fraction by the denomenator of the other. Here the available pair is 19.2 and 25. This means that we multiply 19.2 by 25, which equals 480. The next step is to divide by the remaining numerator or denomenator. Here we divide 480 by 2, which equals 240.