The formula f = 5280m can be used to convert a measurement of f feet to an equivalent measurement of m miles. If an airplane flies at 21,120 feet above the ground, how much is that in miles?
Question 3 options:
4 miles
111,513,600 miles
5.3 miles
132,620,600 miles
To convert feet to miles using the given formula, you need to divide the measurement in feet by the conversion factor, which is 5280.
21,120 feet รท 5280 = 4 miles
Therefore, the airplane flying at 21,120 feet above the ground is equivalent to 4 miles.