### Home > CALC > Chapter 1 > Lesson 1.2.3 > Problem 1-55

1-55.

A marathon runner runs a 26.2-mile race. Her distance traveled in miles at time

*t*hours is*p*(*t*) = 7*t*. Homework Help ✎

How long did it take her to finish the race?

What was her average velocity? Explain your reasoning.

Suppose she runs at a constant pace of 7 miles/hour. How far will she have gone in 2 hours?

Show how the units reduce using rate · time = distance.

26.2 = *p*(*t*)

Solve for *t*.

Evaluate and explain.

Evaluate.