Question

A 7th grade class used a map scale to determine the distance between two cities. One group found that the distance on a map from Austin to Killeen is 1.25 inches and has a real-life distance of 110 kilometers. Another group found the distance from San Antonio to Houston to be 3.25 inches apart on the same map. What is the real-life distance between San Antonio and Houston? kilometers​

Answer 1

286 kilometers

You have to find the unit rate for kilometers per inch, so you divide the 110 kilometers by the 1.25 inches:

110/1.25=88
88*3.25=286