Set this up as
10 = 40 (1/2)t/28
and solve for t in years.
10/40 = (1/2)t/28
log(0.25) = (t/28) log(0.5)
t = 28 log(0.25) / log(0.5) years = 56 years
Test the answer:
56 years = 2(28 years) = 2 half-lives, so the remaining amount should be 1/2 of 1/2 of the initial amount, i.e. 1/4 of the initial amount, and 10 mg = 1/4 of 40 mg.
Answer:
The Red Sea and the Persian Gulf are parts of the Indian Ocean
Explanation:
A map for reference:
<span>The answer is Transantartic Mountains. The </span>mountains that cross through the middle of antarctica is Transantartic Mountains. <span>The Transantarctic Mountains stretch across Antarctica dividing the continent into east and west.</span>
Answer:
Earth's energy budget accounts for the balance between the energy that Earth receives from the Sun
Explanation:
don't do me..... but I just looked it up lol
