An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. Find the elevation of the pl

Question

myrzilka [38]

3 years ago

14

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. Find the elevation of the pl

ane before its descen.

Mathematics

1 answer:

AfilCa [17] · Answer 1 · 2021-12-30T17:09:13+03:00

AfilCa [17]3 years ago

7 0

Answer:

18 miles

Step-by-step explanation:

Let's call it's initial elevation x. Because it descends 3 miles, we now have x - 3. The question says it is now 15 miles above sea level, or x - 3 = 15, and adding 3 to both sides shows that x = 18 miles.