toni1411 toni1411

14-12-2020
Mathematics

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BD bisects ABC. ABC = 67º and ABD = (3x - 1)º. Find the value of 'x'.

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franchiefry franchiefry

14-12-2020

ANSWER: x = 11.5

ABD = 1/2(ABC)
ABD = 1/2(67)
ABD = 33.5
ABD = 3x - 1

3x - 1 = 33.5
3x = 34.5
x = 11.5

CHECK:
2(3x - 1) = 67
6x - 2= 67
6(11.5) - 2 = 67
69 - 2 = 67
67 = 67 ✔️

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