Make Sense and Persevere Len plans to run at least 3 miles each day to get ready for a cross-country race. One lap of the school track is 440 yards. If Len runs 10 laps each day, will he cover at least 3 miles? Explain.

To determine if Len's daily running meets his goal, we first need to convert miles to yards. There are 1,760 yards in a mile, so for 3 miles, Len needs to run at least 5,280 yards. If he runs 10 laps around a track measuring 440 yards, he would cover 4,400 yards (10 laps x 440 yards/lap). Since 4,400 yards is less than 5,280 yards, Len's daily goal isn’t met with 10 laps. If Len wants a surefire way to reach and exceed his 3-mile goal, he can adjust his run to about 12 laps, which will give him 5,280 yards precisely. Alternatively, he can mix in a few additional running segments or longer laps to spice up his routine. Finding the right balance will keep him motivated and racing toward his physical goals!