The sum of the angles of a 180 the angle measures are 3x 7x and 8xwhat is the value of xwhat are the measures of each angle ?

A triangle has angles of 3x, 7x, and 8x that add up to 180

3x + 7x + 8x = 180

combine like terms

18x = 180

Divide both sides by 18

x = 10

Angle 3x = 3(10) = 30

Angle 7x = 7(10) = 70

Angle 8x = 8(10) = 80

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.