If the half-life is t, then every t days, the amount of the radioactive isotope will be cut in half.
(1/2)^(number of half-lives) = 3%
number of half-lives = ln(0.03) / ln(0.5)
This gives the number of half-lives as 5.06.
Then 300 days = (5.06)(length of 1 half-life)
length of 1 half-life = 300 / 5.06 = 59.29 days
2880. What you do is you set this problem up as a proportion. So you do 4/5= x/3600. You then cross multiply and divide.
Answer: -67.35%
Step-by-step explanation:
Answer:
yes!
Step-by-step explanation: im pretty sure it is
Answer:
17.88
Step-by-step explanation:
18- 12/ 100=
447/24=
then simplify
