Răspunsuri

2014-08-11T17:37:26+03:00
A/3=b/7=c/11=k => a=3k si b=7k
a+b=20 => 3k + 7k =20 => 10k = 20 |:10 => k=2 => a=3*2=6 si b = 7*2 =14
c/11= => c=11k => c=11*2 =22
Sper ca ai inteles. Succes in continuare !
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