Answer:
Step-by-step explanation:
The half life is the amount of time it takes a substance to decay to half of its original amount.
Since the radioactive substance has a half life of 1000 years, there will be half of it left after 1000 years.
So, the fraction that will be left after 1000 years is
How many walls are there ?
what answers are shown to choose from ?
I am not sure what it would be.
Answer:
use photo math the two on the right are different lol that's all i know
Step-by-step explanation:
First work out the part in the parentheses
1 1/6 * 3
= 7/6 * 3 = 21/6 = 7/2
convert 4 1/5 to an improper fraction; that is 21/5
so we have 21/5 / 7/2 = 21/ 5 * 2/7 = 21 * 2 3*2
------- = ----
5 * 7 5
= 6/5 or 1 1/5
