Distance where going 75mph vs 65mph is 15min faster:
(d / 65mph) - (d / 75mph) =.25h
75d / 4875 - 65d / 4875 = .25
10d = .25 * 4875
d = .25 * 4875 / 10 = 121.875 mi
Pretty long commute
It was a pretty nice closet, to be fair.
Thus creating The Great Concavity
Distance where going 75mph vs 65mph is 15min faster:
(d / 65mph) - (d / 75mph) =.25h
75d / 4875 - 65d / 4875 = .25
10d = .25 * 4875
d = .25 * 4875 / 10 = 121.875 mi
Pretty long commute