Odpowiedzi

2009-11-29T13:05:39+01:00
1. Tuzin - jaki to procent kopy? a jaki procent mendla?
(12/60) * 100 = 20%
12/15 * 100 = 80%

2. Mendel - jaki to procent kopy a jaki procent tuzina
15/60 * 100 = 25%
15/12 * 100 = 125%

tuzin-12 mendel-15 kopa-60

3. 1zł- ile to promili kwoty 2000zł?????
0,5 promili
4. 5ml- jaki to promil objętości 4l?????
4l - 4000ml
5/4000 * 1000 = 1,25 promili
86 4 86
2009-11-29T13:07:04+01:00
1.
tuzin jaki to procent kopy?
12/60 *100%=20%

tuzin jaki to procent mendla?
12/15*100%=80%

2.
mendel jaki to procent kopy
15/60*100%=25%

mendel jaki to procent tuzina?
15/12*100%=125%

3.
1/2000 * 1000promili=0,5 promila

4.
5/4000 * 1000promili = 1,25 promila
49 4 49