Question

ajude-me a resolver esse problema

Answer 1

Resposta:

19)

1/2kg=0,5kg- A e F

0.25kg=1/4kg- B e E

3/2kg= 1,5kg- C e H

1,75kg=1 3/4kg= G e D

20)

A- 20/8=2,5 c

B- 30/5=6 a

C- 10/3= 3,33... b

21)

1kg=1000 gramas

x= 125g

125x=1000

x=1000/125

x= 8