For this case, the first thing we must do is define variables:
p: plane speed
w: wind speed
With the wind in favor, the speed is:

With the wind against the speed is:

Rewriting both equations, we have the following system of equations:

Then, solving the system of equations (graphically for example), we have the solution is:

Therefore, jet stream's speed:
Answer:
A) p + w = 960; p - w = 600; jet stream's speed = 180 km / h
210:1260
If simplified it is
1:6
If Hope this helped if any question feel free to ask!! :D
Answer:
78
Step-by-step explanation:
I would assume that you convert 2.5 ounces into punds which would make it 0.15 lbs.
Answer:
n = ⅜
Step-by-step explanation: