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aivan3 [116]
4 years ago
8

Solve for X .... -3(x-5)>18

Mathematics
1 answer:
Ilya [14]4 years ago
6 0

Answer:

x<-1

Step-by-step explanation:

We multiply by -1 of both sides and change the sense of inequality:

(-1)*(-3(x-5))>(-1)*18

3(x-5)<-18

3 passes by dividing

x-5<-18/3

x-5<-6

5 goes by adding:

x<-6+5

x<-1

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In this case there will be 2 solutions to solve for in this equation, both will equal plus and minus the answer. Which is 14.

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The solutions will be the following :

(14/6 - 5)/3

(-14/6 - 5)/3.
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3 years ago
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Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

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Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

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sample mean : \overline{x}=65 hours

Population standard deviation : \sigma=18 hours

z-value for 93% confidence interval: z_c=1.8119  [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

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Answer:

2232 for 170 minutes

Step-by-step explanation:

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