eayalaza eayalaza

25-11-2020
Mathematics

contestada

please help lol.. i have to find the value of x..

please help lol i have to find the value of x class=

Respuesta :

zarampa zarampa

25-11-2020

Answer:

x = 31

Step-by-step explanation:

The sum of the internal angles = 180°

then:

2x-5 + x+10 + 2x+20 = 180

5x + 25 = 180

5x = 180 - 25

5x = 155

x = 155/5

x = 31

Check:

2*31 - 5 + 31+10 + 2*31 + 20 = 180

62-5 + 41 + 62+20 = 180

57 + 41 + 82 = 180

Answer Link

Otras preguntas

is this text right in spanish:En mi tiempo libre hago cosas diferentes. a veces voy y paso mi tiempo libre con mi mejor amiga, su nombre es Maria. solemos ir a

{x = -4y - 19 {2x + 2y = 4 Solve the linear system of equations using either the substitution or linear combination method. * SHOW YOUR WORK * correct answers f

PLEASE HELP! WILL GIVE BRAINLIEST! A jet travels through air at 464.1 m/s. If the air has a temperature of 0 degrees C, at what Mach number is the jet flying?

why is romeo in mantua

For his birthday, logan gets a box that holds 3 dolls when filled to capacity. A few weeks later, mia gets a larger box full of dolls. Her box is four times as

85 POINTS, PLEASE HELP! How does power define a civilization? (In medieval feudalism)

please help me with this

I NEED HELP ASAP How can you gain a deeper understanding of a poem by analyzing its tone

6. If a dihybrid F1 plant is self-fertilized, what proportion of progeny will have the same phenotype as the F1 parent? What proportion will be true-breeding? W

whats a quarter of 31.06?whats half of 31.06?