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MathematicsMathematics
19 May, 08:31

The degree measure of one of two complementary angles is 30 less than twice that of the other. What is one of the degree measures of the angles? (Remember that complimentary angles add to be 90 degrees)

27 degrees

30 degrees

40 degrees

45 degrees

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Answers (2)
  1. 19 May, 08:50
    0
    Let x = other angle of two complementary angles

    One of two complementary angles is 30 less than twice other: 2x - 30

    Sum of complimentary angles add to be 90 degrees

    x + 2x - 30 = 90

    3x = 120

    x = 40

    Answer

    40 degrees
  2. 19 May, 08:58
    0
    Hello,

    n + (2n - 30) = 90

    n + 2n - 30 = 90

    3n - 30 = 90

    3n = 30 + 90 = 120

    n = 120 / 3 = 40°
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Home » Mathematics » The degree measure of one of two complementary angles is 30 less than twice that of the other. What is one of the degree measures of the angles? (Remember that complimentary angles add to be 90 degrees) 27 degrees 30 degrees 40 degrees 45 degrees
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