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Furkat [3]
4 years ago
15

5x +1 = -3+10x how do you solve this

Mathematics
2 answers:
Natali5045456 [20]4 years ago
7 0

Answer:

x = 4/5

Step-by-step explanation:

Group like terms together.  Start by subtracting 1 from both sides, obtaining

5x = -4 + 10x.

Then combine the x terms, obtaining 4 = 5x.

Solving for x by dividing both sides by 5, we get x = 4/5.

Feliz [49]4 years ago
6 0

Answer:

4/5

Step-by-step explanation:

5x-10x=-3-1

-5x=-4

x=4/5

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Scores on a college entrance examination are normally distributed with a mean of 500 and a standard deviation of 100. What perce
Alla [95]

Answer:

The percentage is P(350 <  X  650 ) = 86.6\%

Step-by-step explanation:

From the question we are told that

   The population mean is  \mu  =  500

     The standard deviation is  \sigma  =  100

The  percent of people who write this exam obtain scores between 350 and 650    

    P(350 <  X  650 ) =  P(\frac{ 350 -  500}{ 100}

Generally  

               \frac{X -  \mu }{\sigma }  =  Z (The \  standardized \  value \ of  \  X )

   P(350 <  X  650 ) =  P(\frac{ 350 -  500}{ 100}

   P(350 <  X  650 ) =  P(-1.5

   P(350 <  X  650 ) =  P(Z < 1.5) -  P(Z <  -1.5)

From the z-table  P(Z <  -1.5 )  =  0.066807

   and P(Z < 1.5  ) =  0.93319

=>    P(350 <  X  650 ) =  0.93319 -  0.066807

=>  P(350 <  X  650 ) = 0.866

Therefore the percentage is  P(350 <  X  650 ) = 86.6\%

3 0
3 years ago
Find the area of a regular octagon with
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Answer:

Step-by-step explanation:

Area=2(1+\sqrt{2})8²

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5 0
3 years ago
If you were to describe a reflection of triangle ABC, what information would you need to include in your description?
schepotkina [342]

Answer:

Step-by-step explanation:

When making a reflection of a triangle and describing it you would need to provide the following two details. First, over which axis the triangle is being reflected over. Secondly, the exact location of each reflected point of the triangle. Doing so would describe how the triangle is being reflected and which point is ending up in which location. Thus, letting the viewer/reader know exactly what is being done to the triangle.

4 0
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1. Scientists randomly select ten groups from a population of men over 50 years old. They calculate the mean
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Answer:

Step-by-step explanation:

Sampling Variability

Hope that helped! :)

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3 years ago
Emoya bought a dress for $180 and she recieves a discount of 10%. the amount of discount she recieves is ?
lora16 [44]

Answer:

18 Dollars

Step-by-step explanation:

180 X .10 = 18 dollars of discount

180-18= 162 is the total of what she paid for the dress

I hope this helped you

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