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Fittoniya [83]
3 years ago
12

5. If three times a number is increased by 4, the result is -8.

Mathematics
2 answers:
KonstantinChe [14]3 years ago
6 0
False

I think that’s right because three times 5 is 15 increased by four is 19 not -8 so...
Fittoniya [83]3 years ago
3 0

Step-by-step explanation:

Hey there!

Let the unknown number be x. Then;

According to the question;

3x+4= -8

3x = -12

x = -12/3

Therefore, x = -4

Check:

3*-4 +4 = -8

-12+4 = -8

-8= -8 (True).

<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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The <em>expected value</em> is given by the <u>sum of each outcome multiplied by it's respective probability.</u>

In this problem:

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Hence, his expected profit for a single game is:

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To learn more about expected value, you can take a look at brainly.com/question/24855677

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