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Solnce55 [7]
3 years ago
8

Karen works for $10 an hour. A total of 25% of her salary is deducted for taxes and insurance. She is trying to save $450 for a

new set of tires. Write an equation to help determine how many hours she must work to take home $450 if she saves all of her earnings. Be sure to save the equation you write, as you will use it to answer the next question in this quiz.
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
5 0
Each hour is worth $7.5, it will take 60 hours
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What is 0+0<br> Thought since it seems like a dry land for points, today, I’d give some to ya’ll.
wel

Answer:

umm ... thx ig

Step-by-step explanation:

have a great day lol ♡♡

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3 years ago
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The highest recorded temperature during the month of July for a given year in Death Valley, California has an approximately norm
S_A_V [24]

Answer:

P(X

And we can find this probability using excel or the normal standard tabe and we got:

P(z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the temperatures of a population, and for this case we know the distribution for X is given by:

X \sim N(123.8,3.1)  

Where \mu=123.8 and \sigma=3.1

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability using excel or the normal standard tabe and we got:

P(z

6 0
3 years ago
I need some help please
Diano4ka-milaya [45]
What’s your question
4 0
3 years ago
32.54 = 4.313805 + 0.3012446(x)
Ghella [55]

32.54=4.313805+0.3012446(x)

x=

\frac{32.54 - 4.313805}{0.3012446}

x= 93.698592439499

7 0
3 years ago
You dropped two coins. What is the probability that they will both land on<br> heads?
VMariaS [17]

Answer:

50/50

Step-by-step explanation:

they both have 2 sides. half of that is %50

5 0
3 years ago
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