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kotykmax [81]
3 years ago
5

Solve for x

align="absmiddle" class="latex-formula"> (x + 7 ) = 10
Mathematics
2 answers:
Harrizon [31]3 years ago
7 0
X+7=15
X=15-7
X=8
This is the answer x=8
melomori [17]3 years ago
4 0
2
3 is going to become 2/3 x then you multiply 2/3 with 7
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The population of a city has decreased by 27% since it was last measured. If the current population is 7300, what was the previo
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Answer:

the answer is 9271

Step-by-step explanation:

if 7300 is 73%, then you need to add 27% to get 100% which is 9271

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The world population in 2013 was estimated to be 7.1 billion people, and it is increasing by about 1.1% per year. Assume that th
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4 years ago
When Helen Mirren won the Oscar for Best Actress, she was 61 years old. The Oscar-winning Best Actresses had a mean age of 35.8
saveliy_v [14]

Answer:

a) 61-35.8=25.3

b) \frac{25.2}{11.3}=2.23 deviations

c) z = \frac{61- 35.8}{11.3}= 2.23

d) For this case since we have that z>2 we can consider this value as unusual, since is outside of the interval considered usual.

Step-by-step explanation:

Assuming this complete question : "Helen Mirren was 61 when she earned her Oscar-winning Best Actress award. The Oscar-winning Best Actresses have a mean age of 35.8 years and a standard deviation of 11.3 years"

a) What is the difference between Helen Mirren’s age and the mean age?

For this case we can do this:

61-35.8=25.2

b) How many standard deviations is that?

We just need to take the difference and divide by the deviation and we got:

\frac{25.2}{11.3}=2.23 deviations

c) Convert Helen Mirren’s age to a z score.

The z score is defined as:

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

And if we replace the values given we got:

z = \frac{61- 35.8}{11.3}= 2.23

d) If we consider “usual” ages to be those that convert to z scores between –2 and 2, is Helen Mirren’s age usual or unusual?

For this case since we have that z>2 we can consider this value as unusual, since is outside of the interval considered usual.

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4 years ago
If I start at 327 how do I get to finish if I have to color in numbers divisible by six
9966 [12]
Try a calculator and doing some googling of numbers divisible by six. There's a great calculator site called calculator soup! ( Yes it's really called calculator soup )
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3 years ago
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