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

Help me please:).....

The figure is a cylinder with a sphere within it. To the nearest whole number, what is the approximate volume of the shaded part of this figure? Use 3.14 for Pi

Which of the following processes helps to cycle carbon between water and air? Diffusion Deforestation Emissions from cars Ocean currents

What is 786 x 9, first one to answer correctly gets brainly

Which point on the number line is the best approximation for square of 6

What are three key ideas found in the english bill of rights ? explain the importance of each to america's founding?

write the following equation in slope-intercept form 2y+6=x

how did the us military reflect the diversity of american society during world war 2

why did mao believe that peasants would make true revolutionaries?

Write down five major inventions that improved agricultural output between 1750 and 1870.