Odpowiedzi

2009-12-17T20:42:58+01:00
2 41/84* 20%= 209/84 * 20/100= 209/420
2009-12-17T20:43:14+01:00
2⁴¹/₈₄ =²⁰⁹/₈₄=2,48

100% - 2,48
20% - x
100%x=20*2,48
100x=4,96 /:100
x=0,0496