lexied2303
lexied2303 lexied2303
  • 01-02-2017
  • Mathematics
contestada

Can someone help please~~!?

Can someone help please class=

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texaschic101
texaschic101 texaschic101
  • 01-02-2017
12x + 12 + 15 + 3x + 18 = 180
15x + 45 = 180
15x = 180 - 45
15x = 135
x = 135/15
x = 9 

m < A = 12x + 12 = 12(9) + 12 = 108 + 12 = 120....A is 120
m < C = 3x + 18 = 3(9) + 18 = 27 + 18 = 45....C is 45

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