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Dvinal [7]
3 years ago
14

What is the answer to 8x-9=12+11x

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
3 0

Answer:

x = -7

Step-by-step explanation:

8x - 9 = 12 + 11x

Subtract 11x to both sides of the equation. Then, it will look like this:

-3x - 9 = 12

Add 9 to both sides of the equation. After that, it will look like this:

-3x = 21

Divide both sides of the eqution by -3. Your answer is:

x = -7

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Answer:

B.

Step-by-step explanation:

You can infer from the graph that, on average (which refers to mean), the scores in the post-test have increased in comparison to the scores on the pre-test.

7 0
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lawyer [7]

The 5 number summary are

Minimum = 10, Lower quartile = 11, Median = 12, Upper quartile = 17 and Maximum = 19

<h3>How to identify the 5 number summary?</h3>

The complete question is in the attached image

The 5 number summary of box plot are:

  • Minimum
  • Lower quartile
  • Median
  • Upper quartile
  • Maximum

Each of these summaries are represented by the vertical lines of the box plot

From the attached box plot, we have:

Minimum = 10, Lower quartile = 11, Median = 12, Upper quartile = 17 and Maximum = 19

Read more about 5 number summary at:

brainly.com/question/12490978

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Find the length of the missing side
faltersainse [42]

Answer:

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Step-by-step explanation:

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