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Klio2033 [76]
2 years ago
14

when a plane flies with the wind, it can travel 1980 miles in 4.5 hours. when the plane flies in the opposite direction, against

the wind, it takes 5.5 hours to fly the same distance. find the velocity of the plane in still air and the average velocity of the wind.
Mathematics
1 answer:
Romashka-Z-Leto [24]2 years ago
7 0
Velocity with wind = 1,980 / 4.5 = 440 mph
Velocity against wind =1,980 / 5.5 = 360 mph
Plane in still air - wind speed = 360
Plane in still air + wind speed =440
Adding both equations:
2*Plane in still air = 800
Plane in still air = 400 mph
Plane in still air + wind speed =440
Therefore, wind speed = 40 mph

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Step-by-step explanation:

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Why would someone choose to use a graphing calculator to solve a system of linear equations instead of graphing by hand? Explain
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2 years ago
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Answer:

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Step-by-step explanation:

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People at the state fair were surveyed about which type of
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Answer:

Step-by-step explanation:

You would require the table with the number of males and females who prefer either pink or yellow lemonade at the state fair.

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Male                    156                                104                          260

 

Female                  72                               48                          120

 

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