Annalisef2007 Annalisef2007

02-03-2021
Mathematics

contestada

please help this is the last question and i don’t understand

please help this is the last question and i dont understand class=

Respuesta :

Podetola Podetola

02-03-2021

Answer: 30

Step-by-step explanation:

The angles of triangles have to add up to 180°

So:

x + x + 70 + x + 20 = 180

Bring like terms together

x + x + x + 70 + 20 = 180

3x + 90 = 180

Subtract 90 from both sides

3x = 90

Divide both sides by 3

x = 30

Answer Link

Otras preguntas

If the house was less expensive, we would be able to buy it. Which change corrects the sentence? Change was to were. Change was to was not. Change would to woul

what's half as much of 2/3

Which of the following about carbon sinks is not true? a. They emit more carbon than they take in. b. They take in more carbon they emit. c. They store carbo

Aces true or false, negatively charged particles in an atom are called electrons?

real word problem representing 2x-125=400

Which form of friendly best completes this sentence? Of all the girls on the team, Christina is the __________ . a. more friendly b. friendliest c. friendlier

Which of the following defines a postfigurative culture? a. a culture in which children learn from their forebears b. a culture in which both children and adu

select all that apply. Which statements correspond to cellular respiration?

2.3 Looking at entrepreneurship as an alternative career path venture, discuss the role of family members in assisting in the process of making informed decisi

All objects are in motion relative to the sun. a. True b. False