10 points and brainliest the hourly wages earned by 20 employees are shown in the first box-and-whisker plot below. the person earning $15 per hour quits and is replaced with a person earning $8 per hour. the graph of the resulting salaries is shown in plot 2.the mean and median remain the same. the mean decreases, and the median remains the same. the mean remains the same, and the median decreases. the mean and median decrease.

b

Step-by-step explanation:

The correct option is 2. The mean decreases, and the median remains the same.

Step-by-step explanation:

The formula of mean is

Since the person earning $15 per hour quits and is replaced with a person earning $8 per hour, therefore

Since sum of employees earnings decreased by $7, therefore the mean will decreases.

In a box plot the line inside the box represent the median.

From plot 1 we can say that the median is 9.5. From plot 2 we can say that the median is 9.5.

Therefore the median remain the same.

Option 2 is correct, the mean decreases, and the median remains the same.

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w