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3) Afla numerele a, b, c.
a+b+c=12
b:c=2
a:c=3​

Răspuns :

Andrei2007200749

Explicație pas cu pas:

Ai poza.................

Vezi imaginea Andrei2007200749

 

[tex]\displaystyle\bf\\a+b+c=12\\b:c=2~~\implies~~b=2c\\a:c=3~~\implies~~a=3c\\\\-------\\\\3c+2c+c=12\\\\6c=12\\\\c=\frac{12}{6}\\\\c=2\\b=2c=2\times2=4\\a=3c=3\times2=6[/tex]

 

 

 

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