yesmaammm1223 yesmaammm1223

01-10-2020
Mathematics

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If M is the midpoint of AB, AB = 6x +40, MB = 2x _30, find x,AB, and MB

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shahala1306 shahala1306

01-10-2020

Answer:

If M is the midpoint of AB, then MB is half of AB:

6x + 40 = 2(2x - 30)

6x + 40 = 4x - 60

-4x -4x

2x + 40 = -60

-40 -40

2x/2 = -100/2

x = -50

AB = 6(-50) + 40 = -300 + 40 = -260

MB = 2(-50) - 30 = -100 - 30 = -130

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