FluffyAlpaca
FluffyAlpaca FluffyAlpaca
  • 02-05-2016
  • Mathematics
contestada

For a Supplementary angle, what is THE VALUE OF X in this problem:
(4x + 40)degrees and 3x

Respuesta :

charstar
charstar charstar
  • 02-05-2016
if you add it all together it will be 180 so to work it out you would do this...
7x+40=180
7x=140
x=20

hope this helps :)
Answer Link
EliseJoyMyers
EliseJoyMyers EliseJoyMyers
  • 02-05-2016
a supplementary angle means two angles that equal 180°

 4x + 40 + 3x = 180

7x + 40 = 180
       -40     -40
     ----------------
7x = 140       140 ÷ 7 = 20
Answer Link

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