Question

Folosind amplificari convenbile,gasiti x€N,astfel incat:
a)4 supra 3=x supra 30
b)9 supra x =3 supra 7
Va rogg!!
Dau stele!!
Dau puncte!!
Dau coroana!!

Answer 1

a) $\frac{4}{3} = \frac{x}{30} =\ \textgreater \ x= \frac{30*4}{3} =\ \textgreater \ x=10*4=\ \textgreater \ x=40$

b)
 
       $\frac{9}{x} = \frac{3}{7} =\ \textgreater \ x= \frac{9*7}{3} =\ \textgreater \ x=3*7=\ \textgreater \ x=21$

Spor!