Odpowiedzi

2010-03-21T15:01:39+01:00
A) (50/150)*100%= 25%
b) (150/250)*100%= 60%
c) (15/195)*100%= 7%
d) (10/80)*100%= 12,5%

2010-03-21T15:01:48+01:00
A ) 50g cukru i 150g wody
50/(50+150)=50/200=1/4 * 100%=25%
B)150g cukru i 100g wody
150/250=3/5 * 100%=60%
C)15kg saletry i 180kg wody
15/195=1/13 * 100%≈8%
D)10mg soli i 70mg wody
10/80=1/8 * 100%=12,5%
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2010-03-21T15:03:47+01:00
A)
ms = 50g
mr = 50g+150g = 200g
Cp = 50g/200g*100% = 0,25*100% = 25%

B)
ms = 150g
mr = 150g+100g = 250g
Cp = 150g/250g*100% = 0,6*100% = 60%

C)
ms = 15kg
mr = 15kg+180kg = 195kg
Cp = 15kg/195kg*100% = 100/13% ≈ 7,69%

D)
ms = 10mg
mr = 10mg+70mg = 80mg
Cp = 10mg/80mg*100% = 12,5%
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