Ava45018 Ava45018

31-03-2018
Mathematics

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dannielle dannielle

31-03-2018

2x-y=60/100* 5y

2x-y= 6*5y/10

2x-y=3y
2x=3y+y
2x=4y | :2
x=2y | :x

1=2y/x :2

⇒ y/x= 1/2

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