Question

using the paths shown, how long is the shortest route from newton to lowell? newton campbell 10.8 mi 5 mi 4.7 mi brookfield 8.7 mi lowell

Explanation:

Step1: Identify possible routes

Route 1: Newton - Brookfield - Lowell with length $10.8 + 8.7$; Route 2: Newton - Brookfield - Campbell - Lowell with length $10.8+5 + 4.7$.

Step2: Calculate Route 1 length

$10.8+8.7=19.5$ mi

Step3: Calculate Route 2 length

$10.8 + 5+4.7=20.5$ mi

Step4: Compare lengths

Since $19.5<20.5$, Route 1 is shorter.

Answer:

$19.5$