kay95988 kay95988

24-03-2022
Mathematics

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20. The diagram shows a supplementary angle. Determine the value of x. *

20 The diagram shows a supplementary angle Determine the value of x class=

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jimrgrant1 jimrgrant1

24-03-2022

Answer:

C

Step-by-step explanation:

supplementary angles sum to 180° , then

3x + 15 + 60 = 180 , that is

3x + 75 = 180 ( subtract 75 from both sides )

3x = 105 ( divide both sides by 3 )

x = 35

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