Oblicz a)13% z 25cm b)4,5% z 480 litrow c) 270% z 2,5 km d) 3 promili z 1500 kg e) 7 promili z 20 tys zl f) 1,5 promili z 4 t DAM NAJ
martaryba229
A) 13%x25 cm =13/100x25cm=325cm/100=3,25cm b)4,5%x480l=4,5/100x480l=2160/100=21,6 litrów c)270%x2,5km=270/100x2,5km=270/100x25/10km=27/4xakm=27/4km=6 3/4km=6,75km d)3promile x 1500kg=3/1000x1500kg=4500kg/1000=4,5kg e)7 promili x 20000 zł=7/1000x20000zł=140000zł/1000=140zł f)1,5 promili x 4t=1,5/1000x4t=6t/1000=0,006t
b)4,5%x480l=4,5/100x480l=2160/100=21,6 litrów
c)270%x2,5km=270/100x2,5km=270/100x25/10km=27/4xakm=27/4km=6 3/4km=6,75km
d)3promile x 1500kg=3/1000x1500kg=4500kg/1000=4,5kg
e)7 promili x 20000 zł=7/1000x20000zł=140000zł/1000=140zł
f)1,5 promili x 4t=1,5/1000x4t=6t/1000=0,006t