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2 years ago

Help please help please

Mathematics

1 answer:

lions [1.4K]2 years ago

7 0

By solving a linear equation, we conclude that the measure of AC is 31 units.

We know that A, B, and C are 3 collinear points, such that B is in the middle.

That means that:

AC = AB + BC

Here we know that:

AC = 3x - 38

AB = 2x - 40

BC = 25

Replacing that, we get the linear equation:

3x - 38 = 2x - 40 + 25

Solving this for x, we get:

3x - 2x = -40 + 25 + 38

x = -40 + 25 + 38 = 23

Replacing that in the equation for AC, we get:

AC = 3x- 38 = 3*23 -38 = 31

We conclude that the measure of AC is 31 units.

If you want to learn more about linear equations:

brainly.com/question/1884491

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1 year ago

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Answer:

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3 years ago

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ra1l [238]

Hi there!

»»————-　★　————-««

I believe your answer is:

170

»»————-　★　————-««

Here’s why:

⸻⸻⸻⸻

$\text{The phrase can be rewritten as:}\\\\10 * (8-(-9))\\---------------\\\rightarrow 8-(-9) = 8 + 9 = 17\\\\\rightarrow 10 * 17\\\\\rightarrow \boxed{170}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

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