Answer:
x=30 is answer required over here.hope this helps.best of luck.
If the half-life is 5 minutes, then 30 minutes is equivalent to 6 half-lives. So, after six successive half-lives, the 400 mg of the radioisotope would have a mass of 400(0.5)⁶ = 6.25 mg.
Thus, A would be the correct answer choice here.
Answer:
From the point of view of the early Song emperors, the purpose of the civil service examinations was to draw men with literary educations into the government to counter the dominance of military men
Answer:
When you feel you are ready.
Explanation:
You are in control of you, When you feel your ready for a child you might be. But I do suggust finnishing school first.