Answer:
The speed of jet in still air is 750 miles per hour and speed of wind is 130 miles per hour.
Step-by-step explanation:
Given that:
Distance traveled by jet against the wind = 2480 miles in 4 hours
Combined speed =
= ![\frac{2480}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B2480%7D%7B4%7D)
Combined speed = 620 miles per hour
Distance traveled with wind = 7040 miles in 8 hours
Combined speed = ![\frac{7040}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B7040%7D%7B8%7D)
Combined speed = 880
Let,
Speed of jet = x
Speed of wind = y
When jet travels against the wind, the speed will be subtracted
x-y=620 Eqn 1
When jet travels with the wind, the speed will be added
x+y=880 Eqn 2
Adding Eqn 1 and 2
(x-y)+(x+y)=620+880
x-y+x+y=1500
2x=1500
Dividing both sides by 2
![\frac{2x}{2}=\frac{1500}{2}\\x=750](https://tex.z-dn.net/?f=%5Cfrac%7B2x%7D%7B2%7D%3D%5Cfrac%7B1500%7D%7B2%7D%5C%5Cx%3D750)
Putting x=750 in Eqn 2
750+y=880
y=880-750
y=130
Hence,
The speed of jet in still air is 750 miles per hour and speed of wind is 130 miles per hour.
Answer: The Answer -21
Step-by-step explanation:
DID IT ON EDGE 2020
Answer:
you can write the equation of any line in the form of y = mx + b .
Step-by-step explanation:
Answer:
Step-by-step explanation: so you would do $526 divided by 8 because there are 8 dogs so you would take to the total number. So the answer would be
65.75
Domain = (-∞ , ∞) or all real numbers
hope it helps