2. A student had taken six tests and received scores of 88, 73, 81, 83, 79, 94. The seventh test
1 answer:
You might be interested in
Answer:
0
Step-by-step explanation:
Hello, dividing by 0 is not defined. so
is defined for x different from 0
This being said, we can simplify by 2x
and this last expression is defined for any real number x.
Thank you
So we have the system of equations:
equation (1)
equation (2)
To use substitution, we are going to solve for one variable in one of our equations, and then we are going to replace that value in the other equation:
Solving for
in equation (2):
equation (3)
Replacing equation (3) in equation (1):
equation (4)
Replacing equation (4) in equation (3):
We can conclude that the solution of our system of equations is <span>(7/5, 21/10)</span>
To use substitution, we are going to solve for one variable in one of our equations, and then we are going to replace that value in the other equation:
Solving for
Replacing equation (3) in equation (1):
Replacing equation (4) in equation (3):
We can conclude that the solution of our system of equations is <span>(7/5, 21/10)</span>