Question

A hot air balloon went from an elevation of 5,374 feet to an elevation of 3,484 feet in 36 minutes. What was its rate of descent?

Answer 1

52.5 feet/min
5374-3484 = 1890. This is the total change in elevation. The time is 36 minutes. Rate is just distance / time, so 1890/36 = 52.5 (assuming ft/min is the proper units)