To answer this question, you will reflect the original shape to make a new trapezoid at K(2, -1), G (2, -4), H(6, -4), and J (6, -2). You will keep the y value in each ordered pair and write the opposite x value to show the reflection.
These are all then translated 3 units left to create the new ordered pairs:
K(-1, -1), G(-1, -4), H(3, -4), J(3, -2)
The two parallel sides are KG and JH. These were originally CF and DE.
4(5x-20)= -20
20x-80= -20
+80 +80
____________
20x=60
_______
20
x=3
I would solve the first equation for x and then sub that value into x in the second equation. That's the easiest way. x - 2y = 3 solved for x is x = 2y+3. Now sub that in for x in the second equation: 5(2y+3)+3y=2 and 10y + 15 + 3y = 2. 13y = -13, and y = -1. Now sub that y value into either equation to solve for x: x = 2(-1) + 3 gives us an x value of x = 1. Therefore, your solution to this system is (1, -1), first choice above.
Answer:
the population is everyone at the airport ,the sample is the 50 people that walked by Elizabeth
