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8 July, 10:03

The angles below are supplementary. What is the value of x? A pair of supplementary angles is shown. One angle measures 4x + 20, and the other angle measures 40.

answers:

5

7.5

15

30

+1
Answers (2)
  1. 8 July, 11:27
    0
    x = 30

    Step-by-step explanation:

    If the angles are supplementary, that means that they add up to 180°.

    That means 40 + 4x + 20 = 180°

    Simplify: 60 + 4x = 180

    Subtract: 4x = 120

    Divide: x = 30
  2. 8 July, 11:59
    0
    Answer: The answer is D. 30

    I took the FLVS test and got it correct, just so everyone knows it is right!
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