Final answer:
Ruth runs 16 laps on the track to cover a distance of 4 miles, since each lap is 1/4 mile and 4 miles divided by 1/4 mile per lap equals 16.
Step-by-step explanation:
To calculate how many laps Ruth runs when she runs 4 miles on a track, where each lap is 1/4 mile, we use division. We divide the total distance she runs by the distance of one lap:
- Total distance run: 4 miles
- Distance per lap: 1/4 mile
- Number of laps run = Total distance run ÷ Distance per lap
- Number of laps run = 4 miles ÷ 1/4 mile per lap = 16 laps
Therefore, Ruth runs 16 laps on the track to cover a distance of 4 miles.