Question

Exprima marimile de mai Jos in sistemul international de unitati 257 mg in g 3785 dg in g 0,975hg in g 1,2 g/cm3 in g 800g/dm3 in g 56kg/dm3 in g 0,25mg/mm3 in g.

Answer 1

- 257 mg in g

1 g = 1000 mg

=> 257/1000 = 0,257 g

- 3785 dg in g

=> 1 g = 10 dg

=> 3785/10 = 378,5 g

- 0,975 hg in g

1 hg = 100 g

=> 0,975x100 = 97,5 g

- 1,2 g/cm3 in g

1,2 g = 1,2 g

- 800 g/dm3 in g

1 dm3 = 10 cm3

=> 800 g/10 cm3 = 80 g/cm3

- 56 kg/dm3 in g

1 kg = 1000 g

1 dm3 = 10 cm3

=> 56000 g/ 10 cm3 = 5600 g/cm3

- 0,25 mg/mm3 in g.

1 mg = 0,001 g

1 mm3 = 0,1 cm3

=> 0,00025 g/0,1 cm3 = 0,0025 g/cm3