#1**+9 **

1.)

8x + 50 = 130

x = 10

2.)

2x + 3x + 3x = 180

x = 45/2

y = 2x

y=2(45/2)

y=45

echofire18 Dec 6, 2018

#2**+1 **

1 The two labelled angleas are the same measure so 130 = 8x +50 solve for x

2 Triangles angles add to 180 so 180 = 2x + 3x + 2x solve for x angle s = 2x

3 I assume 5x is actually 5y

angles add to 180 degrees so 2y+20 + 5y + 40 = 180 solve for y

4 AC and AB are same length so 2x+23 = 4x+1 solve for x and substitute into 3x-8 to find BC

ElectricPavlov Dec 6, 2018

#4**+1 **

OK....I see that now

5x = 40 degrees (since the opposite sides are =)

180 degrees in a triangle so 40 + 40 + 2y+20 = 180 solve for y = 40

ElectricPavlov
Dec 6, 2018