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Math Asked by a SnapAndSolve user · about 2 hours ago

Direction: Find the values of x and y in the following figures. 1. (21y - 1)°, (4x + 23)°, (9x - 38)° 2....

Direction: Find the values of x and y in the following figures.
1. (21y - 1)°, (4x + 23)°, (9x - 38)°
2. 5y°, (15x + 10)°, 85°
3. (4x + 6)°, 74°, 2y°
4. (9x + 42)°, 15x°, (4y - 13)°
5. (2y - 50)°, 80°, (3x - 1)°
6. (9x + 12)°, 3x°, (4y - 10)°

Answer

  1. Using the property of vertically opposite angles:
    (21y - 1)° = (9x - 38)°
    21y - 1 = 9x - 38
    21y = 9x - 37
    Also, (4x + 23)° = (9x - 38)°
    4x + 23 = 9x - 38
    5x = 61
    x = 12.2
    Substitute x = 12.2 into 21y = 9x - 37:
    21y = 9(12.2) - 37
    21y = 72.8
    y = 3.47

  2. Using the property of supplementary angles:
    5y + 85 = 180
    5y = 95
    y = 19
    Also, (15x + 10)° = 85°
    15x + 10 = 85
    15x = 75
    x = 5

  3. Using the property of supplementary angles:
    (4x + 6) + 74 = 180
    4x + 80 = 180
    4x = 100
    x = 25
    Also, 2y = 74
    y = 37

  4. Using the property of vertically opposite angles:
    (9x + 42)° = (4y - 13)°
    9x + 42 = 4y - 13
    4y = 9x + 55
    Also, (9x + 42)° = 15x°
    9x + 42 = 15x
    6x = 42
    x = 7
    Substitute x = 7 into 4y = 9x + 55:
    4y = 9(7) + 55
    4y = 118
    y = 29.5

  5. Using the property of supplementary angles:
    (2y - 50) + 80 = 180
    2y + 30 = 180
    2y = 150
    y = 75
    Also, (3x - 1)° = 80°
    3x - 1 = 80
    3x = 81
    x = 27

  6. Using the property of vertically opposite angles:
    (9x + 12)° = (4y - 10)°
    9x + 12 = 4y - 10
    4y = 9x + 22
    Also, (9x + 12)° = 3x°
    9x + 12 = 3x
    6x = -12
    x = -2
    Substitute x = -2 into 4y = 9x + 22:
    4y = 9(-2) + 22
    4y = 4
    y = 1

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