Answer:
The rate of plane in still air is 834 km/hr and the rate of wind is 80 km/hr.
Step-by-step explanation:
The airplane travels 6032 km in 8 hours against the wind.
So, 
........ (1) {Where u is the speed of plane in still air and v is the wind speed}
Again, the airplane travels 7312 km in 8 hours with the wind.
So, 
........ (2)
Now, adding equations (1) and (2) we get,
2u = 1668
⇒ u = 834 km per hour.
So, from equation (1), we get
v = u - 754 = 834 - 754 = 80 km per hour.
Therefore, the rate of the plane in still air is 834 km/hr and the rate of wind is 80 km/hr. (Answer)
Answer: the brother is 20 and the sister is 9
Step-by-step explanation:
29 - 11 = 18 18 divided by 2 is 9
9+11 is 20 the brothers age so the sister is 9
Answer:
BEC = 60 degrees can i have brainlest
Step-by-step explanation: cd is 30 so it cant be 90 degrees abe is 90 150 is aed so only answer left is 60
Step-by-step explanation:
4. y=-6/3x+3 (if you can simplify put y=-2x+3)
5. y=5/2x+1
6. y=-8/2x -5 (if you can simplify put y=-4x-5)
7. y=-6/6x+2 (if you can simplify put y=-x+2)
8. y=4/6x-4 (if you can simplify put y=2/3x-4)
9. y=6/5x+0
hope this helped!!!
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