This is a fairly easy half-life problem
Each half-life reduces the radioactive material by one half.
So after 72 hours the radioactive material would have undergone 6 half-lives.
2^6 = 64.
So, there will be one sixty-fourth of the material left.
520 / 64 = 8.125 grams will remain.
radioactive decay is an exponential decay function.
Source:
http://www.1728.org/halflife.htm
12 ÷ 75 = 0.16.
So she runs 0.16 miles per minute.
Hope it helps!
Answer:
-19
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
10x-6=5x+34
-5x -5x
5x-6=34
+6 +6
5x=40
---- ----
5 5
x= 8
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Please let me know if there’s something you don’t understand. Hope this helps!