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Va rog mult Dau coroana!

Va Rog Mult Dau Coroana class=

Răspuns :


[tex] \frac{x}{5} = \frac{y}{4} [/tex]
a) 5y=4x
[tex]y = \frac{4x}{5} \: \: | \div x[/tex]
[tex] \frac{y}{x} = \frac{4}{5} [/tex]
b)4x=5y
[tex]x = \frac{5y}{4} \: \: | \div y[/tex]
[tex] \frac{x}{y} = \frac{5}{4} [/tex]