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ajutor la acesta problema!!

Ajutor La Acesta Problema class=

Răspuns :

c=mdx100/ms

c1=15%

ms1=700g

md1= c1xms1/100= 105g sare


c2=md1x100/ms2 ,,,,,,unde md2= md1+m,sare=105+100=> 205g

                                           ms2=ms1+m,sare+ m,apa= 700+100+200=> 1000g

c2= 205x100/1000=...........................calculeaza !!!!