There are many ways of solving a system of equation, a very used one is by elimination of variables, which consists in eliminating one of the variables by combining the equations.
Let's do the following combination: (eq 1) + (eq 2)
This means that we add each term vertically:
⇒
When I said "add vertically" means that you add the first term of the first equation with the first term of the second equation. The second term of the first equation with the second term of the second equations, and so on.
This allowed us to remove the "y" temporarily so we can get a linear one-variable equation we can easily solve:
Now that we know the value of "x", we can plug it in any of the starting equations and get "y":
Therefore, our answer looks like this:
Answer:
114
Step-by-step explanation:
Given that
THe data that was collected over a 40 years is 112, 98, 139, 142, 120, 110, 114, 123, 137, 114, 92, 140, 109, 133
We need to find out the mode
As we know that
The mode is the value that is highly repeated
So according to the data, 114 would be repeated two times
So this represent the mode of the data
Answer: no thanks
Step-by-step explanation:
Answer:
It’s the third ans
Step-by-step explanation: