0.8 is 20% of 4. This is because 20% of something occurs when something is divided by 5, since it is 1/5 of 100. You multiply 0.8*5, and you get 4.
Step-by-step explanation:
1 year = 12 months
2yrs = 24 months
F(c) =100+5(24)
= 100+120
= $220
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
Answer:
this answer has to be A because the libra of the pole goes west
Step-by-step explanation:
this answer has to be A because the libra of the pole goes west
