yousraabdellatif9 yousraabdellatif9
  • 03-03-2022
  • Mathematics
contestada

PLLKEEASE HELPPPPPPP ASAPP

PLLKEEASE HELPPPPPPP ASAPP class=

Respuesta :

ganjilaya2019
ganjilaya2019 ganjilaya2019
  • 03-03-2022

Answer:

x = 19

Step-by-step explanation:

(5x + 4)° + (x - 2)° + (3x + 7)° = 180°

(5x + x + 3x)° + (4 - 2 + 7)° = 180°

9x° + 9° = 180° → ÷9

x + 1 = 20

x = 20 - 1

x = 19

Answer Link

Otras preguntas

What are two Cabinet-level positions?
Given the balanced ionic equation: 3Pb2+ + 2Cr ==> 3Pb + 2Cr3+ What is the number of moles of electrons gained by 3.0 moles of lead ions? (1) 5.0 mol (3)
What major event happened on September 11, 2001, in the United States?
Find the value of 15.0 Newton in pounds
Which compound is an electrolyte? (I) CH3CHO (3) CH3COOH (2) CH3OCH3 (4) CH3CH2CH3
is the planet Uranus surface rocky or flat?
Name one of the two longest rivers in the United States.
What is the color of the indicator thymol blue in a solution that has a pH of 11? (1) red (3) pink (2) blue (4) yellow
What is the color of the indicator thymol blue in a solution that has a pH of 11? (1) red (3) pink (2) blue (4) yellow
What major event happened on September 11, 2001, in the United States?