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1-55.

A marathon runner runs a 26.2-mile race. Her distance traveled in miles after t hours is p(t) = 7t. Homework Help ✎

  1. How long does it take her to finish the race?

    26.2 = p(t)
    Solve for t.

  2. What is her average velocity? Explain your reasoning.

    Evaluate and explain.

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

    Evaluate.

  4. Show how the units in your answer to part (c) reduce using (rate)(time) = distance.

    (rate)(time)= (miles/hour) (hours) = _________