Question

using the paths shown, the distance from somerville to lakewood is 15.7 kilometers. how far is it from arlington to lakewood?

Explanation:

Step1: Identify given distances

The distance from Somerville to Lakewood is 15.7 km and from Somerville to Arlington is 7.1 km.

Step2: Use subtraction to find distance

Let the distance from Arlington to Lakewood be $x$. We know that the distance from Somerville to Lakewood is the sum of the distance from Somerville to Arlington and from Arlington to Lakewood. So $x=15.7 - 7.1$.
$x = 8.6$

Answer:

8.6