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nasty-shy [4]
3 years ago
6

Mrs. K is five times as old as her son if he is 35 how old is her son

Mathematics
2 answers:
GuDViN [60]3 years ago
8 0

Answer

Mrs. K's son is 7

(how did mrs K forget how old her own son was) :O

Step-by-step explanation

35/5=7

CHECK

7x5=35

<em>hope this helps!</em>

<em>have an amazing day :)</em>

Katen [24]3 years ago
6 0

If Mrs. K is five times as old as her son and she is 35, then her son is 7.

35 / 5 = 7

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Answer:

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Step-by-step explanation:

When the distribution is normal, we use 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.

The average hourly wage of workers at a fast food restaurant is $7.25/hr with a standard deviation of $0.50.

This means that \mu = 7.25, \sigma = 0.5

If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns more than $8.00?

This is 1 subtracted by the pvalue of Z when X = 8. So

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

Z = \frac{8 - 7.25}{0.5}

Z = 1.5

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