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aflati x,y i.p cu 0,2 si 0,5 stiind ca 2x+3y=48​

Răspuns :

Răspuns:

[tex]0,2x=k\\ \\x=k/0,2=10k/2=5k\\\\0,5y=k \\ \\ y=k/0,5=10k/5=2k\\\\2x+3y=48\\\\2*5k+3*2k=48\\\\10k+6k=48\\\\16k=48= > k=48:16= > k=3\\\\x=5*3=15\\\\y=2*3=6\\\\[/tex]