Odpowiedź :
1.
12/25 x 100 % =12/1 x 4%= 12 x 4% = 48 %
2.
zabawki nieuszkodzone - 200 - 30 =170
170/200 x 100% = 170/2 x 1% = 85 x 1 % = 85 %
3.
promil - 1/1000
3/500 = 6/1000 = 6 promili
12/25 x 100 % =12/1 x 4%= 12 x 4% = 48 %
2.
zabawki nieuszkodzone - 200 - 30 =170
170/200 x 100% = 170/2 x 1% = 85 x 1 % = 85 %
3.
promil - 1/1000
3/500 = 6/1000 = 6 promili
zad.1
12:25×100%=0,48×100%=48%
zad.2
200-30=170
170:200×100%=0,85×100%=85%
zad.3
3:500×1000 promili =0,006×1000 promili = 6 promili
12:25×100%=0,48×100%=48%
zad.2
200-30=170
170:200×100%=0,85×100%=85%
zad.3
3:500×1000 promili =0,006×1000 promili = 6 promili