Respuesta :

Answer:

Answer is x= 20 degrees.

Given lines are perpendicular

therefore sum of the angels = 90 degrees

Step-by-step explanation:

[tex]x + 3x + 10 = 90 \\ 4x + 10 = 90 \\ 4x = 90 - 10 \\ 4x = 80 \\ therefore \: x = 20 \: degrees[/tex]

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Answer:

20

Step-by-step explanation:

Complementary angles add up to 90

x + 3x + 10 = 90

4x = 80

x = 20°