Odpowiedzi

2009-10-15T14:23:21+02:00
= 36/10*18/10*6/5 162/25*6/5
_____________________= ___________________________=
225/100-21/10÷84/10 225/100-21/10*10/84


972/125 972/125
= _________= ____________________________ =

225/100-1/4 225/100-25/100

=972/125÷200/100=972/125*100/200=972/250

972/250*20%=9720/125=77,76
2009-10-15T14:30:12+02:00
3,6 x 1,8x12 7,776
_____________ = ______ = 3,888
2,25 - 2,1 : 8,4 2



100 % ----- x
20 % ------ 3,888


x = (100% x 3,888) : 20% = 19,44