mary2091 mary2091

07-06-2021
Mathematics

contestada

What is the value of x?
O A. x=15
O B. x=10
O C. x=20
D. x=5

What is the value of x O A x15 O B x10 O C x20 D x5 class=

Respuesta :

goyangi goyangi

07-06-2021

The correct answer is C (x = 20).

Explanation:
(x + 5) + x + (7x - 5) = 180 (Sum of angles in a triangle)
x + 5 + x + 7x - 5 = 180
9x = 180
x = 20

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