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olchik [2.2K]
3 years ago
8

I really NEED help!

Mathematics
1 answer:
Gala2k [10]3 years ago
6 0

Answer:

This is long ill write up a short summary of the answer in 2 mins

Step-by-step explanation:

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2. Flying to Kampala with a tailwind a plane averaged 158 km/h . On the return trip the plane only averaged 112 km/h while flyin
stiv31 [10]

Answer:

Speed of plane in still air = 135 km/h

Speed of wind = 23 km/h

Step-by-step explanation:

Given that:

Speed of plane with the wind = 158km/h

Speed of plane against the wind = 112km/h

Let,

x be the speed of plane

y be the speed of wind

According to given statement;

x+y = 158     Eqn 1

x-y = 112       Eqn 2

Adding Eqn 1 and 2

x+y+x-y=158+112\\2x = 170\\\frac{2x}{2}=\frac{270}{2}\\x=135

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Hence,

Speed of plane in still air = 135 km/h

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8 0
3 years ago
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