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8_murik_8 [283]
2 years ago
14

If 8x – 4 = 6x – 10, find the value of 3x.

Mathematics
1 answer:
zmey [24]2 years ago
6 0

Answer:

-9

Step-by-step explanation:

8x-4=6x-10

2x-4=-10

2x=-6

x=-3

-3x3= -9

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When 12 is subtracted from 3 times a number,the result is 24. Find the number
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I get:
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An engineer commutes daily from her suburban home to her midtown office. The average time for a one-way trip is 36 minutes, with
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Answer:

57.93% probability that a trip will take at least 35 minutes.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 36, \sigma = 4.9

What is the probability that a trip will take at least 35 minutes

This probability is 1 subtracted by the pvalue of Z when X = 35. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{35 - 36}{4.9}

Z = -0.2

Z = -0.2 has a pvalue of 0.4207

1 - 0.4207 = 0.5793

57.93% probability that a trip will take at least 35 minutes.

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3 years ago
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And that's the required simplified form .

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3 years ago
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