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3 years ago

A, B and C are collinear points. B is between A and C. AB=12 BC=18 AC=3x Find X.

Mathematics

1 answer:

SCORPION-xisa [38]3 years ago

3 0

Answer:

$x =10$

Step-by-step explanation:

Given

$AB = 12$

$BC = 18$

$AC = 3x$

Required

Solve for x

Since B is in between both points, then:

$AC = AB + BC$

This gives

$3x = 12 + 18$

$3x = 30$

Divide by 3

$x =10$

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Answer:

$\Large\boxed{\sf{y=\dfrac{7}{2} }}$

Step-by-step explanation:

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Divide is another option.

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Therefore, the correct answer is y=7/2.

I hope this helps. Let me know if you have any questions.

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