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The angles shown below are supplementary: What is the value of x? 10° 11° 20° 21°
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3 votes
The angles shown below are supplementary:

What is the value of x?
10°
11°
20°
21°

The angles shown below are supplementary: What is the value of x? 10° 11° 20° 21°-example-1
User Hbgamra
by
8.0k points

2 Answers

2 votes
11: Supplementary means equal to 180°. 180= 10x-70. 110=10x. x=11.
User Manish Parakhiya
by
8.1k points
4 votes
Since the angles are supplementary, together they add up to 180.

10x + 70 = 180
10x = 180 - 70
10x = 110
x = 110 / 10
x = 11

The value of x = 11, your second option.
User ChangUZ
by
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The angles shown below are supplementary: What is the value of x? 10° 11° 20° 21°
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