3 years ago

PLEASE PLEASE PLEASE HELP WILL MARK BRAINLIEST!!!!!!!!!!!

Mathematics

1 answer:

LUCKY_DIMON [66]3 years ago

4 0

Answer:

the awnser is .5

Step-by-step explanation:

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3 years ago

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3 years ago

2z+3x-8yx=<br> 3zy+x-8=<br><br> find the solution

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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

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

Putting x = 135 in Eqn 1

135+y = 158

y = 158-135

y = 23

Hence,

Speed of plane in still air = 135 km/h

Speed of wind = 23 km/h

8 0

3 years ago