Odpowiedzi

2010-03-28T15:05:10+02:00
Mr1=80g
cp1= 5%

mr2=80g+ 20g=100g

80g- 100%
x- 5%
x= 80×5÷100
x=4g

cp= 4g÷100g×100= 4%
2010-03-28T15:19:35+02:00
Ms = 5%*80g = 0,05*80g = 4g
mr = 80g+20g = 100g

Cp = 4g/100g*100% = 4%