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taliajohnsom8362
01.10.2019 •
Mathematics
How do you solve 2(10-6x)=x-8x
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Ответ:
20-12x=x-8x
+12x+12x
20=13x-8x
20=5x
4=x
Ответ:
1st. Distribute 2 to 10 and -6x
20-12x=x-8x
2nd. Move -12x to the other side.
20=13x-8x
Simple math.
20=5x
x=4
Ответ:
Conclusion
The average rental rate in Hong Kong are higher than in Paris
Step-by-step explanation:
From the question we are told that
The sample size for Hong Kong is![n_1 = 30](/tpl/images/0650/4387/c79c9.png)
The mean for Hong Kong is![\mu_h = 1,114 \ m^2](/tpl/images/0650/4387/f64e7.png)
The standard deviation for Hong Kong is![s = 230](/tpl/images/0650/4387/dfcf8.png)
The sample size for Paris is![n_2 = 40](/tpl/images/0650/4387/38d1c.png)
The mean for Paris is![\mu_p = 989 \ m^2](/tpl/images/0650/4387/0808f.png)
The standard deviation for Paris is![s_p = 195](/tpl/images/0650/4387/d4f2d.png)
The level of significance is![\alpha = 0.05](/tpl/images/0650/4387/246a1.png)
The Null Hypothesis is
The alternative hypothesis is
The test statistics is mathematically represented as
Substituting values
Since the value of the test statistics is higher than the significance level then there is enough evidence to conclude that the average rental rate in Hong Kong are higher than in Paris