Suppose you are on a trip which covers 762 miles. Write a relationship that represents the distance remaining r (x) as a function of the number of miles x already completed.

r (x) + x = 762

Step-by-step explanation:

We know that the addition of the completed miles and the remaining miles is the total distance to cover.

remaining miles + completed miles = total miles

If we defined the remaining distance as "r (x) " and the already completed distance as "x":

r (x) + x = 762

This equation express the relationship between the completed miles and the remaining miles.