Knowing that 5280 feet equals 1 mile allows an initial approximation to be made of 10 miles (= 52800 feet).
As the difference between 54925 and 52800 is 2125 and this is less than half of 5280, then this confirms that 54925 feet when rounded off to the nearest mile equals 10 miles.
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2,122.56 feet above 10 miles.
h + vt -4.9t^2=54925 10+10v-4.9(10)^2=54925 500+10v=54925 10v=54925-500 10v=54425 v=5442.5
10 miles = 52,800 feet.
There are 10 miles in 52,800 feet
1 mile = 5,280 feet.10 miles = 52,800 feet