Let's consider the first number to be 
and the second number to be 
. Based on the information in the problem, we can create the following equations:
Now, we can solve the equations through systems of equations. One way of doing this is by multiplying one of the equations so that there is a term in both equations which can be removed by addition or subtraction. In our case, we can multiply the entire first equation by 2 to get:
![2f + 4s = 2/tex][tex]2f + s = 14](https://tex.z-dn.net/?f=2f%20%2B%204s%20%3D%202%2Ftex%5D%3C%2Fp%3E%3Cp%3E%5Btex%5D2f%20%2B%20s%20%3D%2014)
Now, subtract 
from both equations to get:
Now that we have found , "plug" it back into an equation to find :
Our answers are s = -4 and f = 9.
Answer:
3/4
Step-by-step explanation:
9/8 * 2/3
Rewriting
9/3 * 2/8
Simplifying
3/1 * 1/4
3/4
Answer:
2 x 3 x 5
Step-by-step explanation:
that is it
Given:
The initial mass of an element is 800 grams.
Decay rate = 8.2% per day
Number of days = 15
To find:
The remaining element after 15 days.
Solution:
The exponential decay model is
Where, a is the initial value r is the rate of interest and t is time period.
Putting 
in the above formula, we get
Therefore, the mass of the remaining element is 221.7 grams.
Answer:
Step-by-step explanation:
actually, it IS 7
