zamien promile na liczby:
a) 20 promili, 100 promili, 350 promili, 980 promili, 2000 promili
b) 3 promile, 5,2 promili, 12,5 promili, 20,1 promili 0,8promili
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20 promili : 1000/1
a)
20 ‰ =0,02
100‰ =0,1
350‰ =0,35
980‰=0,98
2000‰ =2
b)
3‰ =0,003
5,2‰ = 0,0052
12,5‰ = 0,0125
20,1‰ = 0,0201
0,8‰ = 0,0008