Let us suppose a system of two equations with two unknowns.
Suppose further that the system of equations is linearly independent.
When the system of equations has a variable that has exactly the same coefficient in both equations, then the most effective method to solve the system of equations is subtracting.
This is because we eliminate one of the variables and reduce the system to an equation with one unknown.
Answer:
a system of equations in which subtraction would be the most efficient way of solving the system is:
A system of equations in which one of the variables has exactly the same coefficient in both equations.
I believe it would be the third option
14 53/100
14 212/400 are both equivalent
The activity type would be the input and the cost would be the output. Because there are two different costs for the same activity, this would not be a function.
Yeah the answer is number 5