Answer:
0.789 kg
Explanation:
We know (by definition) that: 1g = 0.001kg
We can set up a proportion to solve for the number of kilograms.
1g789g = 0.001kgxkg
Now, we cross multiply to solve for our unknown x:
x kg = 789g1g * 0.001 kg → x kg = 0.789 kg
Conclusion: 789 g = 0.789 kg