AminaArdekani AminaArdekani

07-06-2017
Mathematics

contestada

The angles of a triangle are 80º, 2x + 2º, and 5xº. What is the value of x?

(I'm a K12 STUDENT TAKING A SEMESTER TEST)

Respuesta :

JoshEast JoshEast

07-06-2017

Since the sum of the angles of a triangle = 180°

Then 80º + (2x + 2)º + 5xº = 180°
82° + (7x)° = 180°
(7x)° = 180° - 82°
x = 98° ÷ 7
∴ x = 14

Answer Link

Otras preguntas

how to write 20/10 as a mixed number

An item that costs $50.00 is marked 20% off. Sales tax for the item is 8%. What is the final price, including tax? Show your work.

Olfactory cells located in your nasal passages link your sense of ________ with your sense of ________.

Fungi are classified into how many groups? 1 group 2 groups 3 groups 4 groups

is 2/5 equivalent to 0.25

how did European nations try to prevent war?

Many Chinese were not happy about the increasing Western influence so they A.supported Empress Cixi. B.supported Emperor Guangxu. C.rose up in the Boxer Rebelli

what can happen if you change a patients address in the system without her permission

what makes women more likely to become infected with HIV ?

The _____ law of thermodynamics states that when two objects of different temperature are in contact, heat energy will flow from the hotter to the cooler object