VĂ ROG,VĂ ROG,VĂ ROG
URGENT
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DAU COROANA
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Răspuns:
[tex]\frac{a}{b} = \frac{c}{d} => ad=bc[/tex]
[tex]\frac{3}{x} =\frac{y}{0,9} => xy=3*0,9[/tex]
[tex]xy=2,7[/tex]
[tex]5xy+6,5 = 5*2,7+6,5[/tex]
[tex]5xy+6,5=13,5+6.5[/tex]
[tex]5xy+6,5=20[/tex]