Odpowiedzi

2009-11-26T13:36:57+01:00
Dane
mr1=30g
cp1=5%
mr2=80g
cp2=2%
cp-?
cp=ms*100%/mr
ms=cp*mr/100
ms1=5*30/100=1,5g
ms2=2*80/100=1,6g
cp=(ms1+ms2)*100/(mr1+mr2)=(1,5+1,6)*100/(30+80)=2,82%