angela09277 angela09277

24-04-2021
Mathematics

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ZA and B are vertical angles. If mZA = (3x – 30° and m B = (2x – 9)", then find the value of x.

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27alexanderjett 27alexanderjett

24-04-2021

Answer:

x = 21°

Step-by-step explanation:

Vertical angles have the same measures, therefore:

3x - 30 = 2x - 9

x - 30 = -9

x = 21°

Answer Link

ledwabamaupye ledwabamaupye

24-04-2021

Answer:

21

Step-by-step explanation:

If mZA=mB

3x-30°=2x-9

TRANSPOSE

3x-2x=-9+30

1x=21

X=21

Answer Link

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