nataliajohn nataliajohn
  • 02-11-2020
  • Mathematics
contestada

If (2x + 30°) and (3x + 10°) are supplementary angles, then the value of x is
options:-
20°
56°
28°
86°

Respuesta :

annie5639
annie5639 annie5639
  • 02-11-2020

Answer:

c. 28°

Step-by-step explanation:

2x + 30° + 3x + 10° = 180° ( Sum )

or, 5x + 40° = 180°

or, 5x = 140°

or, x= 28° [ans]

Answer Link

Otras preguntas

John Marshall's Supreme Court decisions in the early 1800's did all of the following, except...a.) increase the power of the federal government over the statesb
How many quarts in 24 pints?
how many minutes is it before 12 noon if 20 minutes ago it was three times as many minutes after 9 am
How do I solve this equation? If 3t-7=5t then 6t=a 21b-7c-21d-42
How many corners are in a rectangle and how many flat faces
What is hyperbole? Please help
The surface area of a triangular pyramid is 375.2 m2. What would change if the surface area were measured in square centimeters?
What happens at a conservative plate boundary? Someone please help me in this because I have test today. Aswell please don't copy it from the internet.
What happens at a conservative plate boundary? Someone please help me in this because I have test today. Aswell please don't copy it from the internet.
What is 9-4(2p-1)=45?