a) [(+80) : (-8)] : (-5) = (-10) : (-5) = B) [(-70) : (-2)] : (-7) = c) (+50) : [(-30) : (+6)]= d) (-40) :[( +24) : (+3)]= Porfa me ayudan​

70

step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

answer: the answer is b. i think hope i got it correct

step-by-step explanation: