Answer:
832
Step-by-step explanation:
If you have one group of 832, and put it into 1 group you get 832
X-15 is greater than or equal to 4
If a radioactive substance remains 80% of the initial amount then the half life of the radioactive substance is 2.5 years.
Given 80% of the initial amount of a radioactive substance remains.
If after 1 year the value or weight of the radioactive substance remains 80% means the rate of disappearing is 20% per annum.
If we clearly observe then it is forming a geometric progression and the rate is 80%.
Geometric progression will be if we assume the initial quantity be 100
is:
100,80,64,.........
we have to calculate the value of years in the value of term is 0.
the value of nth term of a geometric progression is
so,
r is 0.8
100*=0
=0
if we calculate this we will find n-1=11
n=12
So the full life of radioactive substance is 12 and the half life will be 6 years.
Learn more about geometric progression here brainly.com/question/12006112
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Answer:
maximum of 18 groups, with 75 bottled water and 8 canned food
Step-by-step explanation:
This problem is related to HCF
So you have to find the HCF of the two number of products
next, search the factors that are in common between the two numbers.
18 is going to be the number of maximum groups you can make because it is related to the combination of integers that generates the number of products.
To find the number of bottles and cans, just divide the amount you have with the amount of group.
bottles of water
cans
Hope you have a nice day!