aniyaward91 aniyaward91
  • 02-03-2024
  • Mathematics
contestada

how do I solve it I’ve been struggling for a little bit for mow

how do I solve it Ive been struggling for a little bit for mow class=

Respuesta :

jsimpson11000 jsimpson11000
  • 02-03-2024

Step-by-step explanation:

Start with  7y -1   +    9x+4    = 180    (straight line = 180° )     Solve for y

 y = 25 2/7 - 9/7x

sub this in for 'y'  in  the sum of the triangle's angles

86    +     4x-7     +     7 ( 25 2/7 -9/7 x) - 1     = 180  

     compute this to find x = 15

then sub back in to the triangle sum:

86   +    (4 (15) -7)    +     7y-1      = 180

   compute this to find y = 6

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