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ex.4 ,va roog mult,cinea ajuta? ...dau coronita!!

Ex4 Va Roog Multcinea Ajuta Dau Coronita class=

Răspuns :

ms1=20g     md1=c1xms1/100=8X20/100=1.6g
c1=8%         md2=c2Xms2/100= 10X40/100=4g
ms2=40g       mdfinal=md1+md2=1.6g+4g=5.6 g
C2=10%
mdfinal=?