a) 3% wynosi 120 100% - x 3% - 120 x = 120*100/3 x = 4000 b) 23% wynosi 4,6 100% - x 23% - 4,6 x = 100*4,6/23 x = 20 c)250% wynosi 12 100% - x 250% - 12 x = 100*12/250 x = 4,8 d)105% wynosi 21 100% - x 105% -21 x = 100*21/105 x = 20 e)20 % wynosi 400 100% - x 20% - 400 x = 100*400/20 x = 2000 f)35 % wynosi 70 100% - x 35 % - 70 x = 100*70/35 x = 200 g)13 % wynosi 52 100% - x 13 % - 52 x = 100*52/13 x = 400 h)220% wynosi 44 100% - x 220% - 44 X = 100*44/220 x = 20 i)71% wynosi 7,1 100% - x 71% - 7,1 x = 100*7,1/71 x = 10 j)17% wynosi 51 100% - x 17% - 51 x = 100*51/17 x = 300
a) 3% - 120 100% - x 3x=12000 /:3 x=4000 b)23% - 4,6 100% - x 23x=460 /:23 x=20 c)250% - 12 100% - x 250x = 1200 /:250 x=4,8 d)105% - 21 100% - x 105x=2100 /:105 x=20 e)20 % - 400 100% - x 20x=40000 /:20 x=2000 F)35 % - 70 100% - x 35x=7000 /:35 x=200 g)13 % - 52 100% - x 13x=5200 /:13 x=400 h)220% - 44 100% - x 220x=4400 /:220 x=20 i)71% - 7,1 100% - x 71x=710 /:71 x=10 j)17% - 51 100% - x 17x=5100 /:17 x=300
a) 3% = 120 100% = x x = (120 *100)/3 x = 4000 b)23% = 4,6 100% = x x = (100*4,6)/23 x = 20 c)250% = 12 100% = x x = (12*100)/250 x=4,8 d)105% - 21 100% - x 105x=2100 /:105 x=20 e)20 % - 400 100% - x 20x=40000 /:20 x=2000 F)35 % - 70 100% - x 35x=7000 /:35 x=200 g)13 % - 52 100% - x 13x=5200 /:13 x=400 h)220% - 44 100% - x 220x=4400 /:220 x=20 i)71% - 7,1 100% - x 71x=710 /:71 x=10 j)17% - 51 100% - x 17x=5100 /:17 x=300
