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Lena [83]
2 years ago
8

What is the answer to -3x + 10 = 5x + -8

Mathematics
2 answers:
Inessa05 [86]2 years ago
7 0

Answer:

x = \frac{9}{4}

Step-by-step explanation:

So here we are trying to find the value of x;

Subtract 5x from both sides;

-8x + 10 = -8

Then, Subtract 10 from both sides;

-8x = -18

Divide both sides by -8;

x = \frac{9}{4}

PilotLPTM [1.2K]2 years ago
4 0

x= -2.25

Step-by-step explanation:

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Four more than a number is half the number
eduard

Answer:

b

Step-by-step explanation:

7 0
3 years ago
The following table gives the science scores and times spent studying for 10 students:
AveGali [126]
There appears to be a positive correlation between the number of hour spent studydng and the score on the test.

When identifying the independent and dependent quantities, we think about what would cause the other to change.  The score on the test would not cause the number of hours spent studying to change; rather, the number of hours spent studying would cause the score to change.  This means that the number of hours studying would be the independent quantity and the score would be the dependent quantity.

Plotting the graph with the time studying on the x-axis (independent) and the score on the y-axis (dependent) gives you the graph shown.  You can see in the image that there seems to be a positive correlation; the data seem to generally be heading upward.

8 0
3 years ago
Listed below are the salaries, in $000, for a sample of 15 chief financial officers in the electronics industry.
Tcecarenko [31]

Answer:

a)

Mean = sum of all numbers in dataset / total number in dataset

Mean = 8130/15 = 542

Median:

The median is also the number that is halfway into the set.

For median, we need to sort the data and then find the middle number which in our case is 546. Below is the sorted data

486  516 523  523  529  534  538  546  548  551  552  558  566  574  586

Standard Deviation (SD).  Here X represents dataset and N= count of numbers in data

As per the SD formula, which is Sqrt ( sum (X_i - Meanx(X))/(N-1))

SD= 25.082

2) Formula for coefficient of skewness using Pearson's method (using median) is,

SK = 3* ( Mean (X) - Median(X))/(Standard Deviation) =  3*(542-546)/25.082 = -0.325

3) coefficient of skewness using the software method is also same which is -0.325

4 0
3 years ago
Solve for k.<br><br> 9 + 3k = 15<br><br> k =
-Dominant- [34]

Answer:

k = 2

Step-by-step explanation:

subtract 9 from both sides and you have 3k=6

then divide by three on both sides to get 2

7 0
3 years ago
Read 2 more answers
3y - x = 3<br> 2 ^ 3y -1 ^ x =2
aivan3 [116]
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5 0
3 years ago
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