Answer:
see below
Step-by-step explanation:
It looks like all you're asking for is to copy the data from the problem statement to a chart. The chart is attached.
Answer:
Step-by-step explanation:
Let p and w represent the speed of the plane and the speed of the wind, respectively.
.. speed = distance/time
.. p +w = 720/3 = 240
.. p -w = 720/4 = 180
Add the two equations to eliminate w.
.. 2p = 420
.. p = 210
.. w = p -180 = 30
The speed of the wind is 30 mph.
The speed of the plane in still air is 210 mph.
27 + 2×(-why)
matches your English expression.