Answer:
Speed of the plane: 250 mph
Speed of the wind: 50 mph
Step-by-step explanation:
Let x be the speed of the plane.
Let y be the speed of the wind
#Given that It takes the plane 3 hours to go 600 miles when against the headwind and 2 hours to go 600 miles with the headwind. We set our equations as:

Hence, the speed of wind is 50 mph and the speed of the plane is 250 mph.
All you need to do is add them all together and the answer is 22.3 :)
Answer:
250
Step-by-step explanation:
Let x = the number of adult tickets sold
Let x + 53= the number of student tickets sold
x + x + 53 = 553
2x = 500
x = 250
2x + 53 = 553
Answer:
1/3
Step-by-step explanation:
3x – 9y = 4
We need to solve for y
Subtract 3x from each side
3x – 9y-3x = 4-3x
-9y = -3x+4
Divide each side by -9
-9y/-9 = -3x/-9 +4/-9
y = 1/3 x -4/9
This is in the form y = mx+b where m is the slope and b is the y intercept
y =1/3x -4/9
The slope is 1/3