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23-06-2018
Mathematics

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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 class=

Respuesta :

23-06-2018

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.

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stardance19934 stardance19934

23-06-2018

11: Supplementary means equal to 180°. 180= 10x-70. 110=10x. x=11.

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