Răspuns :
Răspuns:
[tex] \frac{a}{2} = \frac{b}{3} = \frac{c}{5} = k \\ a = 2k \\ b = 3k \\ c = 5k \\ 10k = 1920 \\ k = 192 \\ a = 384 \\ b = 576 \\ c = 960[/tex]
Răspuns:
[tex]a/2=b/3=c/5=k-coeficient.de.proportionalitate\\\\a=2k\\\\b=3k\\\\c=5k\\\\a+b+c=1920= > 2k+3k+5k=1920\\\\10k=1920= > k=1920:10= > k=192\\\\a=2*192=384\\\\b=3*192=576\\\\c=5*192=960[/tex]