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.
Answer:
48,504 ÷ 16 = 3031.5
Even because the answer is 22690, which is an even number (All numbers ending in 0 are even)
Even because the answer is 2806046958, which is even (All numbers ending in 8, including 8 itself, are even)
THE ANSWER IS..... X1= -6 & X2=0
