cz. I
dane:
Cp = 8%
ms = 5,4 kg
szukane:
mr - ?
Cp = ms/mr * 100%
Cp/100% = 5,4/mr
8%/100% = 5,4/mr
8mr=540kg
mr=6,5kg
cz. II
dane:
mr1 = 5kg
Cp1= 8%
mr2 =5kg
Cp2 = 40kg
szukane:
Cp3 - ?
Cp = ms/mr * 100%
ms= Cp *mr / 100%
ms1= Cp1 *mr1 / 100%
ms1= 8%*5kg/100%
ms1=0,4kg
ms2= Cp2 *mr2 / 100%
ms2= 40%*5kg/100%
ms2=2kg
ms3=ms1+ms2
ms3=2,4kg
mr3= mr1 + mr2
mr3=10kg
Cp = ms/mr * 100%
Cp3 = ms3/mr3 * 100%
Cp3= 2,4kg / 10kg *100%
Cp3 = 24% = 240 %о