My "work" is to enter the equations into a graphing calculator and let it show me the answers--just as your "work" is to copy the question to Brainly.
The solutions are
(x, y) = (-0.5, 7.5)
(x, y) = (3, 25)
_____
When you equate the expressions for y, you get the quadratic
2x² -5x -3 = 0
(2x +1)(x -3) = 0
x = -1/2 or 3
y = 5(x +2) = 15/2 or 25
total number of student in the data set in the dataset is 90
1 = 32
2 = 148
3 = 32
4 = 148
5 = 32
6 = 148
7 = 32
8 = 148
Answer:

Step-by-step explanation:
The slope can be calculated using two points, (2, 60) and (4, 50) as shown below:
, where,


Plug in the values into the equation



Answer:
x= 4
Step-by-step explanation:
We do like:
5x+2(1-x)=2(2x-1)
5x + 2 -2x = 4x -2
or 3x +2 = 4x -2
3x-4x +2 = -4x+4x -2
or -x +2= -2
and -x+2 -2 = -2 -2
or -x = -4
and x = 4 is the solution.
Have a good day.