Question

Am nevoie de raspunsuri pana la si 40 va rog dau coroana

Answer 1

Răspuns:

Explicație:

1 c=25 %       ms=md*100/c=125 g*100 /25=500g

md=125 g       mH2O=ms-md=500g-125 g=375g

ms=?

mH2O=?

2.ms1=600g     md1=c*ms/100=600*10/100=60 g

c=10%            md final=md1+md2=60g+40 g=100g

md2=40g       ms final =ms1+md2=600g+40g=640 g

cfinal=?             c final=mdfnal/ms final *100=100g/640 g*100=15,625 %