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Va rog ajutati-maa!! Am nevoie de 2 probleme rezolvate la alegere (10,13,14).

Va Rog Ajutatimaa Am Nevoie De 2 Probleme Rezolvate La Alegere 101314 class=

Răspuns :

10 ) ms1=150 g
  c1=40%
ms2=450 g
c2=20 %
cf=?
md1=ms /100*C1= 150/100*40=60
md2 =ms2/100 *c2=450/100*20=90
mdfinal =60 g+90 g=150 g
ms final=ms1+ms2=150+450=600
cf=mdf/msf*100=150/600*100=25 %