Only pick one which inequality is true?
a. |-15|>|-19|
b.|-16|<|13|
c.|-15|>|12|
d.|12|<|-8|
e.|-19|>|-20|

C

Step-by-step explanation:

Absolute value makes anything in it positive, as distance from 0 can only be positive. So if we apply that to every term, we can find the answer.

For a, simplify and it becomes 15>19. That's false

For b, simplify and it becomes 16<13. Also false

For c, simplify and it becomes 15>12. True

For d, simplify and it becomes 12<8. False

For e, simplify and it becomes 19>20. Very False.

So the only true one is C. So C is the answer.

Hope this helped.

366

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18