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Alexandra [31]
1 year ago
5

What is the the value of m in the equation 1/2m-3/4n=16, when n=8

Mathematics
1 answer:
Norma-Jean [14]1 year ago
3 0
Answer: m=44

explanation:
1/2m-3/4(8)=16
just fill substitute the n for 8 and then find the value of m
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What is the slope of a line perpendicular to the line y= - 2/3x + 1
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3/2 since perpendicular lines have opposite reciprocal slopes
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What would your salary each year be if you earned $5,000 per week?
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2 years ago
New York City is the most expensive city in the United States for lodging. The mean hotel room rate is per night (USA Today, Apr
kow [346]

Answer:

P(X

Step-by-step explanation:

Assuming a mean of $204 per night and a deviation of $55.

a. What is the probability that a hotel room costs $225 or more per night (to 4 decimals)?

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".  

Let X the random variable that represent the cost per night at the hotel, and for this case we know the distribution for X is given by:

X \sim N(204,55)  

Where \mu=204 and \sigma=55

And let \bar X represent the sample mean, the distribution for the sample mean is given by:

\bar X \sim N(\mu,\frac{\sigma}{\sqrt{n}})

We are interested on this probability

P(X>225)

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>225)=P(\frac{X-\mu}{\sigma}>\frac{225-\mu}{\sigma})

=P(Z>\frac{225-204}{55})=P(Z>0.382)

And we can find this probability on this way:

P(Z>0.382)=1-P(Z

8 0
2 years ago
What is 2x-5y+15=0 written in slope-intercept form
Nadya [2.5K]
The answer is y=2/5x+3
6 0
3 years ago
Read 2 more answers
Find the value of x so that the function has the given value. 2(x) = 2x + 7; n(x) = 17​
Galina-37 [17]

Answer:

  x = 5

Step-by-step explanation:

Maybe you have ...

  n(x) = 2x +7

and you want x for n(x) = 17.

  17 = 2x +7

  10 = 2x . . . . . . subtract 7

  5 = x . . . . . . . . divide by 2

7 0
3 years ago
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