Question

mim ajuda a responde​

Answer 1

Resposta:

a) x=70° b)x=50° c)70°

10) a) x=15 b)x=5 c)x=20 d)x=16

Explicação passo-a-passo:

a)120°+110°+60°+x=360

290+x=360°

x=360°-290°

x=70°

b)130°+90°+90°+x=360°

310°+x=360°

x=360°-310°

x=50°

c)105°+98°+87°+x=360°

290°+x=360°

x=360°-290

x=70°

10) a) 2x=30

x=30/2

x=15

b) 4x+3x=45-10

7x=35

x=35/7

x=5

c) x=60/3

x=20

d) x=33-17

x=16