Answer:
$3
if we wanted to find how much 1 bottle would cost we would do 6/6=1 and from that we now know that 1 bottle of water costs $1 so if we times that by 3 to find out how much 3 bottles will cost we get $3.
Answer:
Step-by-step explanation:
The decay rate of a radioactive isotope (also called activity of the isotope) is given by:
where
r is the decay rate
k is the decay constant
N is the number of nuclei in the radioactive sample
The decay constant of a radioactive isotope is also related to the half-life of the isotope by the formula
where
is the half-life of the isotope, which is the time taken for the sample to halve, compared to its initial amount
In this problem, the half-life of plutioniun-239 is
Therefore, the k-factor (decay constant) is:
In this question we can see
that there is one unknown variable named “y” and one equation. So it is
absolutely possible to find the correct value of the unknown variable “y”. Now
let us check the equation that is given and solve it correctly.
y - 18 = 10
y = 10 + 18
= 28
So the value of the unknown variable “y” is 28. I hope this
is the answer you were looking for and the procedure is clear to you.
The center of data is a single number that summarizes the entire data set. The median is the midpoint value of a data set, where the values are arranged in ascending or descending order. The median can be used to find the center of data when the numbers in the data set contain one or more outliers.
