am nevoie urgent vă rog ​

Am Nevoie Urgent Vă Rog class=

Răspuns :

Răspuns:

.ms=300g

C1=15%

md1=?

C2=?

md1=C1×ms1/100=15×300/100=45g

md2=45+10=55g

ms2=300+10=310g

C2=md2×100/ms2=55×100/310=17,74%