There are 5280 feet in one mile. Therefore, 21120 feet is equal to 21120 / 5280 = 4 miles.
1.2 mi = 6,336 ft
9 mi = 47,520 ft
79,200 ft Algebraic Steps / Dimensional Analysis Formula 15 mi*5280 ft 1 mi=79,200 ft
4.5 mi Algebraic Steps / Dimensional Analysis23,760 ft*1 mi 5280 ft=4.5 mi
21120 feet
The formula to convert 21120 feet to miles 21,120 ft * 1 mi 5280 ft = 4 mi
1 mile = 5280 ft so 4 miles = 21120 ft.
1 mile=5,280 ft4 miles = 5,280 ft x 4 = 21,120 ft.
There are 5280 feet in a mile. That calculates out to 21,120 feet.
4
5280*4=21120 ft.
21120 ft/4 hours = 4 miles/4 hour = 1 mph
It is approx 13.1 ft.
Since one mile = 5280 ft, 4 miles = 21120 ft. 4 miles is greater than 21000 ft.
21120
1 mile = 5280 feet so 4 miles = 4*5280 = 21120 feet.