D=Rt is a subproblem of this problem. The concept that answers the question asked is that The whole is the sum of the parts. In the case at hand the total distance, the whole, is the sum of the remaining distance and the distance traveled.

Avoid starting a solution by working fragments. Identify the concept that is the answer to the question asked.

In the box above click on the concept
that responds to what the problem asks for.

---

Comments are important and appreciated. Please comment.
A SureMath solution. Copyright 1998, Howard C. McAllister.