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daca 2 supra x = 111 supra 5 ,atunci x supra x+5=...?

Răspuns :

Matepentrutoti
Aplicam proportii derivate:
[tex] \frac{2}{x} = \frac{111}{5} \\ \frac{2}{111} = \frac{x}{5} \\ \frac{2}{111+2} = \frac{x}{5+x}\\ \frac{x}{5+x}=\frac{2}{113}[/tex]
Alinsmarandach
2/x=111/5   111x=2*5    x=10/111

x:(x+5)=10/111: (10/111+5)
x:(x+5)=10/111: 565/111=10/111*111/565=2/113

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