Question 8 of 10 A model of a plane in different parts of the atmosphere uses a scale of
1:2,000. If a plane flies at an altitude of 4,000 feet, how high above ground
level is the plane in the model?
A. 4 ft
B. 8 ft
C. 2 ft
D. 1/4,000 ft

C. 2 ft

Explanation:

if the scale is 1:2,000

This means that if the original plane flyes 2,000ft above the ground, the model plane will fly 1ft above the ground.

Now, if the plane flies 4,000ft above the ground, this is two times as the number from above, then the model plane will also fly two times as the number from above.

2*1ft = 2ft.

Now, we also can do it as:

2000ft equiv to 1 ft.

4000ft equiv to x

x = 1ft*(4000ft/2000ft) = 1ft*2 = 2ft.