Answer: A.
Step-by-step explanation:
To find mean, average the numbers in the data set by adding them together and dividing by the number of values.
(96 + 77 + 82 + 91 + 89) / 5 = 87.
To find median, take the "middle" value of the data set. To find this, you can sort the numbers in ascending order and remove the same amount of values from each side.
77 / 82 / 89 / 91 / 96, the median is 89.
Therefore, the mean is less than the median.
Answer:
For the given linear equation in two variables, the solution to the system of equations is (-2, -6).
Given :
y = x - 4 ---- (1)
y = 4x + 2----- (2)
Linear equations are nothing but yet another subset of "equations". Any linear calculations requiring more than one variable can be done with the help of linear equations.
The standard form of a linear equation in two variables is of the form. Here, x and y are variables, and a, b and c are constants.
From equations (1) and (2) we get,
x-4 = 4x + 2
x = - 2
Now, from equation (1) we get,
y = -2 -4
y = - 6
The solution to the system of equations is (-2, -6).
