Odpowiedź :
Odpowiedź: C% =22%
dane:
c%1=20%
mr1=400g
ms2=ms1 +10g
szukane:
ms1 ,mr2,C%2
obliczenia;
20g ----------100g
x------------ 400g
x= 80g --> ms1
C%2 =ms2/mr2*100%
ms2= 80g +10g =90g
mr2= 400g +10g=410g
C%2= 90g/410g*100%
C%2=21,95% =22%
C%2=