To solve the problem, we first need to determine the runner's pace and then use that pace to calculate how far they can run in 16 minutes.
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Find the pace per minute: The runner completes \( \frac{1}{4} \) of a 5-mile race (which is \( \frac{1}{4} \times 5 = 1.25 \) miles) in 8 minutes.
\[ \text{Pace} = \frac{1.25 \text{ miles}}{8 \text{ minutes}} = 0.15625 \text{ miles per minute} \]
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Calculate the distance in 16 minutes: Now, to find out how far the runner can go in 16 minutes, we multiply the pace by the time:
\[ \text{Distance in 16 minutes} = 0.15625 \text{ miles per minute} \times 16 \text{ minutes} = 2.5 \text{ miles} \]
Thus, at that pace, the runner can cover 2.5 miles in 16 minutes.