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PIT_PIT [208]
3 years ago
9

12-x=15 What does x equal?

Mathematics
2 answers:
babymother [125]3 years ago
3 0
12-x=15 \\ \\ -x = 15 - 12 \\ \\ -x = 3 \\ \\ x = -3 \\ \\

The final result is: x = -3.
solong [7]3 years ago
3 0

Ok. First you isolate the variable. So Ill take 12 which is posotive, and subtract 12 from the 15 and the 12. Now all were left with is -x=3. We multiply each side by -1 to give us x=-3. Hope this helps!

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boyakko [2]

Answer:

What is the probability that you will finish this quiz in 23.84 minutes or less?

0.03593

Write your answer as a percentage with 2 decimals

= 3.59%

Step-by-step explanation:

The z score formula is given as:

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

Mean = 26 minutes

Standard deviation = 1.2 minutes.

The probability that you will finish this quiz in 23.84 minutes or less(≤) is calculated as:

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z = -1.8

Probability value from Z-Table:

P(x ≤ 23.84) = 0.03593

Converting to percentage

0.03593 × 100

= 3.593

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7 0
3 years ago
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Katena32 [7]
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7 0
2 years ago
Read 2 more answers
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Answer:

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Explanation

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