Odpowiedzi

2009-11-13T16:18:06+01:00
A)
60---100%
12---x%
x=12*100 :60
x=20%
tuzin to 20% kopy

60---100%
15---x%
x=15*100 : 60
x=25%
mendel to 25% kopy


Mendel - jaki to procent tuzina

12---100%
15---x%
x=15*100:12
x=125%
mendel to 125% tuzina


Tuzin-jaki to procent mendla

15---100%
12---x
x=12*100 :15
x=80%
tuzin to 80% mendla
  • Użytkownik Zadane
2009-11-13T16:18:46+01:00
A)
12/60*100%=20%
12/15*100%=80%
b)
15/60*100%=25%
15/12*100%=125%
2009-11-13T16:21:06+01:00
A) tuzin-jaki to %kopy,

tuzin-12
kopa-60
mendel-15

12/60*100%=20%

jaki to % mendla ??

12/15*100%=80%

b) mendel - jaki to % kopy,
15/60*100%=25%

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