Odpowiedź :
a) 70% = 21
100 = x
x= 2100: 70 = 30
b) 320% = 640
100% = x
x= 64000:320 = 200
c) 3% = 60
100% = x
x= 6000:3 = 2000
d) 0,2% = 7,4
100% = x
x= 740:0,2 = 3700
100 = x
x= 2100: 70 = 30
b) 320% = 640
100% = x
x= 64000:320 = 200
c) 3% = 60
100% = x
x= 6000:3 = 2000
d) 0,2% = 7,4
100% = x
x= 740:0,2 = 3700
a) 70% 21
100% x
100 * 21= 2100
2100:70= 30
c) 3% 60
100% x
100*60=6000
6000;3=2000
d)0,2% 7,4
100% x
100*7,4=740
740;0,2=3700
100% x
100 * 21= 2100
2100:70= 30
c) 3% 60
100% x
100*60=6000
6000;3=2000
d)0,2% 7,4
100% x
100*7,4=740
740;0,2=3700
A) 70% - 21
100% - x
70x = 2100 | : 70
x = 30
B) 320% - 640
100% - x
320x = 64000
x = 200
C) 3% - 60
100% - x
3x = 6000
x = 2000
D) 0,2% - 7,4
100% - x
0,2x = 740
x = 3700
100% - x
70x = 2100 | : 70
x = 30
B) 320% - 640
100% - x
320x = 64000
x = 200
C) 3% - 60
100% - x
3x = 6000
x = 2000
D) 0,2% - 7,4
100% - x
0,2x = 740
x = 3700