Question

using the paths shown, how long is the shortest route from westford to westminster? westford 6.1 mi danville 3.3 mi campbell 5.4 mi 7.8 mi westminster

Explanation:

Step1: Identify possible routes

There are two possible routes from Westford to Westminster. One is Westford - Danville - Westminster with a length of $6.1+7.8$ miles, and the other is Westford - Danville - Campbell - Westminster with a length of $6.1 + 3.3+5.4$ miles.

Step2: Calculate first - route length

$6.1+7.8 = 13.9$ miles.

Step3: Calculate second - route length

$6.1+3.3 + 5.4=14.8$ miles.

Step4: Compare lengths

Since $13.9<14.8$, the shorter route is Westford - Danville - Westminster.

Answer:

$13.9$