Respuesta :

Answer:

10 < x < 20

Step-by-step explanation:

Given

30 > x + 10 > 20 ( subtract 10 from each interval )

20 > x > 10 → A, which can be expressed as

10 < x < 20

Answer:

A.  20>x>10

Step-by-step explanation:

30>x+10>20

Split this up:

x + 10 < 30

x < 20.

x + 10 > 20

x > 10.