Odpowiedzi

2010-03-16T18:12:40+01:00
17:50=0,34
odp. 17 to 34% liczby 50
1 1 1
2010-03-16T18:13:48+01:00
50-100%
17-x%
x=17×100÷50
x=34%
1 1 1
2010-03-16T18:18:07+01:00
50 * x/100 = 17
50x / 100 = 17 /*100
50x = 1700 /:50
x = 34

spr
50* 34/100 = 17

17=34% z 50