Odpowiedź :
mr1 = 50g
Cp1 = 27%
mr2 = 30g
Cp2 = 5%
mr3 = 50g + 30g = 80g
Cp3 = ?
50g × 27% + 30g × 5% = 80g × x%
1350 + 150 = 80x%
1500 = 80x% / :80
x% = 18,75%
mr1 = 50g
Cp1 = 27%
mr2 = 30g
Cp2 = 5%
mr3 = 50g + 30g = 80g
Cp3 = ?
50g × 27% + 30g × 5% = 80g × x%
1350 + 150 = 80x%
1500 = 80x% / :80
x% = 18,75%