ellakelly726 ellakelly726
  • 10-03-2020
  • Mathematics
contestada

What is the value of x?
5
3 8 7

What is the value of x 5 3 8 7 class=

Respuesta :

emmajademugford
emmajademugford emmajademugford
  • 10-03-2020
All angles in a triangle add up to 180

180 = 9 + 15 + 2x - 1 + 3x

180 = 24 - 1 + 2x + 3x

180 = 23 + 5x

180 - 23 = 5x

157 = 5x

Divide both sides by 5

X = 31.4 or 157/5
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