Answer:
45 meters
Step-by-step explanation:
I hope this helps.
I believe the correct answer is A. Good luck!
Let v be the speed of the slower plane in mph.
Then the speed of the faster plane will be (v + 55) mph.
the closing speed of the two planes is the sum of their speeds:
v + v + 55 = 2v + 55
![time=\frac{distance}{speed}](https://tex.z-dn.net/?f=time%3D%5Cfrac%7Bdistance%7D%7Bspeed%7D)
![3=\frac{1965}{2v+55}](https://tex.z-dn.net/?f=3%3D%5Cfrac%7B1965%7D%7B2v%2B55%7D)
Cross-multiplying, we get:
6v + 165 = 1965
6v = 1800
v = 300
The speeds of the planes are 300 mph and 355 mph.
Hello There!
(15 x 2) + (8 x 2) = 46
Answer: A. 46 feet.
Hope This Helps You!
Good Luck :)
- Hannah ❤