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Colt1911 [192]
4 years ago
13

Solve the following equation. -8(-x-5)=40+8x

Mathematics
2 answers:
iren [92.7K]4 years ago
8 0

Answer:

all the values

Step-by-step explanation:

-8(-x-5)=40+8x\\\\-x-5=\frac{40}{-8}+ \frac{8x}{-8} \\\\-x-5=-5-x\\\\-x-5=-x-5\\\\-x=-x-5+5\\\\-x=-x+0\\\\-x=-x\\

-1(-x)=-1(-x)\\\\x=x

so all the values for x are solutions

denis-greek [22]4 years ago
7 0

Answer:

40=40 so the equation is true

Step-by-step explanation:

-8(-x-5)=40+8x

8x +40 = 40 + 8x

if you cancle out the 8x on both sides then it will be 40 = 40

therefore the equation is true and have infinite soulutions

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For the data set 6, 5, 10, 11, 13, the mean, X, is 9. What is the standard<br> deviation?
Ket [755]

Answer:

standard deviation = 3.0331

Step-by-step explanation:

You can solve for this two different ways.

If you have a TI-84 calculator or something similar, type all the data into list 1. Then click the stat button, then the calc button, then 1-vars stats. This will give you mean, standard deviation, median, mode, etc.

If you are solving by hand, find the different between each data point and the mean. Square these numbers and find the average. Then take the square root of that.

3^2 + 4^2 + 1^2 + 2^2 + 4^2 = 46

46/5 = 9.2

square root of 9.2 = 3.0331

Hope this is helpful!!!!!!!!!!! :)

4 0
3 years ago
What 1 - 2/9 - 1/3 - 1/6 =
jek_recluse [69]

Answer:

5/18

Step-by-step explanation:

The LCD of 9, 3, and 6 is 18.

1 - 2/9 - 1/3 - 1/6 =

= 18/18 - 4/18 - 6/18 - 3/18

= 5/18

6 0
2 years ago
Read 2 more answers
Consider the expressions 5 + 8k and 8k + 5. Determine why the expressions are equivalent.
Anton [14]

Answer:

Step-by-step explanation:

1. equivalent

2. 29

3.equivalent

4 0
4 years ago
6=−w8 how can i solve this
Vaselesa [24]
Divide 6 by -8 to get the variable alone!
6/-8 < division< equation
4 0
4 years ago
Mechanic charges $55 for the first hour and $50 for each additional hour how much does he charge if it takes him in four hours t
VMariaS [17]

Answer:

440$

Step-by-step explanation:

55 x 4=220

50 x 4=200

440$

I hope this is correct if not im sorry

8 0
3 years ago
Read 2 more answers
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