4x + 9y = 4
9x+4y = 13
5
the tables of ordered pairs represent some points on the graphs of lines q and v.
line 9
line v
-9,6-
3
2
| 24410
t 1o| 8
10
| 3
y
0
18
33
which system of equations is represented by lines q and v?
f
h
21x - y = 9
5x + 6y = 40
21x - y = 9
5x + 6y = 20
g
3x - y =-27
x + 2y = 16
9x - y = -27
x + 2y = 8

x=101/65, y=-16/65. (101/65, -16/65).

Step-by-step explanation:

4x+9y=4

9x+4y=13

9(4x+9y)=9(4)

-4(9x+4y)=-4(13)

36x+81y=36

-36x-16y=-52

65y=-16

y=-16/65

4x+9(-16/65)=4

4x-144/65=4

4x=4+144/65

4x=404/65

x=(404/65)/4=101/65

x=101/65, y=-16/65.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6