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b)5,2% * 15,5 = 0,52 * 15,5 = 0,806
a) 1,22x = 15,24 |:1,22
x = 12,5
b) 0,2% * x = 5
0,002 * x = 5 | :0,002
x = 2500
a) 21 : 86 = 24%
b) 12,3 : 25 = 49,2%
c) 104,2 : 40 = 260,5%
a) 155%*62=1,55*62=96,1%
b)5,2%*15,5=0,052*15,5=0,806%
Zad.2
a)122%x=15,24
1,22x=15,24
x=12,49%
0,2%x=5
0,0002=5
x=2500
Zad3.
21/86*100%
24,42$%
12,3/25*100%
49,2%
104,2/40*100%
260,5%