Răspunsuri

  • Utilizator Brainly
2014-03-01T18:42:33+02:00
5a=4b=c=k ⇒ a=k/5, b=k/4, c=k
a-2c=0,3 =3/10 ⇒ 10a-20c=3 ⇒ 10·k/5-20k=3 ⇒2k-20k=3⇒ k=-1/6; a=-1/30, b=-1/24; c=-1/6.
2014-03-01T22:38:15+02:00
(a,b,c) i.p. = 5a=4b=c=k ⇒ a= \frac{k}{5} , b= \frac{k}{4} , c=k
a-2c=0,3 =  \frac{3}{10} ⇒ 10a-20c=3 ⇒ 10·  \frac{k}{5} -20k=3 ⇒2k-20k=3⇒ k= \frac{-1}{6} ; a= \frac{-1}{30} , b= \frac{-1}{24} ; c= \frac{-1}{6} .
   Sper ca te-am ajutat !
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