Answer:
X = 2
Step-by-step explanation:
5(x+3) = 25
25 / 5 = 5
x + 3 = 5
5 - 3 = x
x = 2
Answer:
hi
Step-by-step explanation:
Answer:(-1,2), (6,8), (5,-7)
Step-by-step explanation:
The amount of the 12 grams sample of gold-195m having a half-life of 30.5 s that would remain after 41 s is 4.726 g
<h3>How to determine the number of half-lives </h3>
- Half-life (t½) = 30.5 s
- Time (t) = 41 s
- Number of half-lives (n) =?
n = t / t½
n = 41 / 30.5
n = 82/61
<h3>How to determine the amount remaining </h3>
- Original amount (N₀) = 12 g
- Number of half-lives (n) = 82/61
N = N₀ / 2ⁿ
N = 12 / 2^(82/61)
N = 4.726 g
Learn more about half life:
brainly.com/question/26374513