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determina:
a) 3% din 400
b) numarul,daca 3%din el este 15


Răspuns :

[tex] \frac{3}{100} 40= \frac{120}{100} = \frac{6}{5} [/tex]
[tex]15= \frac{3}{100} x x=1500:3=500[/tex]

Coroana?
a) [tex] \frac{3}{100}*400=3*4=12 [/tex]
b) [tex] \frac{3}{100}*X=15 =\ \textgreater \ 3x=1500=\ \textgreater \ x=500[/tex]