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a fost răspuns

ionel are cu 70 de lei mai mult decat george,george are de 5 ori mai putin decat cornelia,iar cornelia cu 30lei mai putin decat ionel.ce suma are fiecare

Răspuns :

i=g+70
c=5g, g=c/5
i=c+30,
c+30=c/5+70
5c+150=c+350
4c=200
c=50
i=c+30=80
g=i-70=10

MadalinaMadutaa
Notam:
i-ionel
g-george
c-cornelia
[tex]i=g+70=\ \textgreater \ g=i-70\\\\ g =\frac{c}{5} =\ \textgreater \ c=5*g\\\\ c=i-30=\ \textgreater \ i=c+30\\\\ c+30= \frac{c}{5}+70\\\\ 5c+150=c+350\\\\ 5c-c=350-150\\\\ 4c=200\\\\ c= \frac{200}{4}\\\\ c=50~lei\\\\\\ i=c+30\\\\ =\ \textgreater \ i=50+30\\\\ =\ \textgreater \ i=80~lei \\\\\\ g=i-70\\\\ =\ \textgreater \ g=80-70\\\\ =\ \textgreater \ g=10~lei[/tex]

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