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3 years ago

CAN YOU HELP ME WITH THIS

Mathematics

2 answers:

____ [38]3 years ago

8 0

the sum of the expanded angle is 180⇒

$40+40+2x+30=180\\2x=70\\x=35$

Vera_Pavlovna [14]3 years ago

3 0

Answer:

x=35

Step-by-step explanation:

Add the 2 known angles: 80°

Then subtract them from eight since a straight line is 180°: 180-80= 100

then you have the equation: 2x+30=100

2x+30=100

-30 -30

2x=70

$\frac{2x}{2}$ = $\frac{70}{2}$

x=35

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CAN YOU HELP ME WITH THIS​

CAN YOU HELP ME WITH THIS