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a fost răspuns

ajotorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

Ajotorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr class=

Răspuns :

Clemantina
2x+5y/x+y=4,5
2x+5y/x+y=9/2
2(2x+5y)= 9(x+y)
4x-9x+10y-9y=0
-5x+y=0
y=5x
x/y=x/5x=1/5=0.2
5x/2y=5x/10x=1/2=0.5
x²+y²/y²=26x²/25x²=26/25

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