Odpowiedzi

2009-11-18T15:44:50+01:00
Cp=ms*100%/mr
ms1=cp1*mr1/100%=20*40/100=8dag
ms2=60*60/100=36dag
ms=ms1+ms2=8+36=44dag
mr=mr1+mr2=40+60=100dag
cp=44*100%/100=44%