Answer: 1/2 miles
Step-by-step explanation:
Given the following:
Altitude (miles) - - - - - - - - - - distance (miles)
3 1/2 - - - - - - - - - - - - - - - - - - - 250
2 1/2 - - - - - - - - - - - - - - - - - - - - 175
Calculate the plane's altitude at 25miles from the airport
7/2 = 250
5/2 = 175
(7/2 - 5/2) miles = (250 - 175)miles
1 mile = 75 miles
From the above, the plane craft 's altitude reduces by 1 mile for every 75 miles moved
Therefore, at a distance of 25 mile from the airport,
Distance moved = (250 - 25)miles = 225miles
225miles / 75 miles = 3
Therefore, the altitude will reduce by 3 miles from the initial altitude at 250 miles
Therefore,
( 3 1/2 - 3) miles = 1/2 miles
Therefore, the plane craft will have an altitude of 1/2
