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krek1111 [17]
3 years ago
14

When I double this number I get 50 whats my number​

Mathematics
2 answers:
Leni [432]3 years ago
6 0

Answer:

Your number is 25.

Step-by-step explanation:

If you divide 50 by two, or basically the opposite of doubling a number, you get 25. To confirm this, 25 multiplied by 2, or 25 doubled, is equivalent to 50.

Kipish [7]3 years ago
4 0

Answer:

It says double, so it means that:

_____ x 2 = 50

In order to find _____, you must reverse the equation.

50 / 2 = _______

This means that:

50 / 2 = 25

So, ______ = 25

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An insurance company states that it settles 85% of all life insurance claims within 30 days. A consumer group asks the state ins
BlackZzzverrR [31]

Using the z-distribution, it is found that since the p-value of the test is less than 0.05, we reject the null hypothesis and find that there is enough evidence to conclude that the true proportion of all life insurance claims made to this company that are settled within 30 days is less than 85%.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if there is not enough evidence that the proportion is below 85%, that is:

H_0: p \geq 0.85

At the alternative hypothesis, it is tested if there is enough evidence that the proportion is below 85%, that is:

H_0: p < 0.85

<h3>What is the test statistic?</h3>

The test statistic is given by:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

In which:

  • \overline{p} is the sample proportion.
  • p is the proportion tested at the null hypothesis.
  • n is the sample size.

For this problem, the parameters are:

p = 0.85, n = 250, \overline{p} = \frac{203}{250} = 0.812

Hence the test statistic is:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

z = \frac{0.812 - 0.85}{\sqrt{\frac{0.85(0.15)}{250}}}

z = -1.68

<h3>What is the p-value and the conclusion</h3>

Using a z-distribution calculator, with a left-tailed test, as we are testing if the proportion is less than a value, and z = -1.68, the p-value is of 0.0465.

Since the p-value of the test is less than 0.05, we reject the null hypothesis and find that there is enough evidence to conclude that the true proportion of all life insurance claims made to this company that are settled within 30 days is less than 85%.

More can be learned about the z-distribution at brainly.com/question/16313918

#SPJ1

4 0
1 year ago
A business person invested $3600.00 in stock .When he sold the stock he made $30.00 in profit for each share of stock he purchas
Usimov [2.4K]

Given that the total profit is <u>$2400.00</u> and he made <u>$30.00</u> in profit for each share.


Number of shares = $2400 ÷ 30 = 80


Answer: He bought 80 shares

5 0
3 years ago
people ask me sometimes why can’t you do your homework and I say it’s because I help people with theres and they never help me :
shusha [124]

Answer:

6/6 6= 1

Step-by-step explanation:

may be this Is the ans sorry if l am wrong

5 0
3 years ago
Read 2 more answers
Simplify (x^2y)^3. <br> 1)X^2y^3<br> 2)x^5y^3<br> 3)x^6y^3
dsp73

Answer:

the answer is 2

Step-by-step explanation:

3 0
3 years ago
What's the square root of 0.4 repeating
avanturin [10]
The answer depends on knowing that 0.4444.... is equal to 4/9; 
<span>the square root of 4/9 is 2/3 = 0.6666....</span>
6 0
3 years ago
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