The speed of the airplane is 90 miles per hour and the speed of the wind is 30 miles per hour.
<h3>Relative Speed Concept;</h3>
When the plane flies against the wind;
- Relative Speed = 120 = x -y
When the plane flies with the wind;
- Relative Speed = 240 = x +y
Where in;
- The speed of the air plane = x
- The speed of the wind = y
By solving the equations simultaneously; we have;
- x = 180 miles in 2 hours and y = 60 in 2 hours.
Ultimately, the speed of the airplane is 90 miles per hour and the speed of the wind is 30 miles per hour.
Read more on relative Speed;
brainly.com/question/17228388
Answer:
You don't need to single out 
to solve this question.
To solve:
So for the given interval 
(As confirmed by the attached graph)
Answer:
180°
Step-by-step explanation:
Supplementary angles are angles whose sum is 180°. If L and M are supplementary, the sum of their measures is 180°.
Answer:
False
Step-by-step explanation:
2
= x - 8
Add 8 to each side
2+8 = x-8+8
10 = x
x=4 is not a solution
Answer:
Step-by-step explanation:
base=42 m
height=h=?
base angle θ=60°
tan 60=h/42
h=42tan 60=42√3≈72.75 m
height of taller building=135+42√3 m≈135+72.75≈207.75 m≈208 m
