1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
IgorC [24]
3 years ago
6

How do you do these math problem for exploring of algebra?

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
4 0

x=4

Step-by-step explanation:

4(-6+5x)=24+8x

open the bracket

-24+20x=24+8x

collect like terms

20x-8x=24+24

12x=48

divide both sides by 12

12x/12 = 48/12

x= 4

-7+7n=2(-7+7n)

open the brackets

-7+7n=-14+14n

collect like terms

14n-7n=-14+7

7n=-7

divide through by 7

n=-1

You might be interested in
The circumference of a circle is 127 cm. What is the area,
bogdanovich [222]
A≈ 1283.51
I hope this will help u
6 0
3 years ago
7. These values represent the expected number of paintings a person will produce over the next 10 days. 0, 0, 0, 1, 1, 1, 2, 2,
Natasha_Volkova [10]

The mean of a dataset is the average of the dataset.

  • The mean is 1.5
  • The standard deviation is 1.58
  • The median remains unchanged, the mean increases, and the standard deviation decreases when <em>5 is increased to a larger value</em>

The given parameters are:

\mathbf{x = 0, 0, 0, 1, 1, 1, 2, 2, 3, 5}

<u>(a) Mean and Standard deviation</u>

The mean of the dataset is calculated using:

\mathbf{\bar x = \frac{\sum x}{n}}

So, we have:

\mathbf{\bar x = \frac{0+ 0+ 0+ 1+ 1+ 1+ 2+ 2+ 3+ 5}{10}}

\mathbf{\bar x = \frac{15}{10}}

\mathbf{\bar x = 1.5}

Hence, the mean is 1.5

The standard deviation is calculated using:

\mathbf{\sigma_x = \sqrt{\frac{\sum(x - \bar x)^2}{n - 1}}}}

So, we have:

\mathbf{\sigma_x = \sqrt{\frac{(0 - 1.5)^2 + (0- 1.5)^2 + (0- 1.5)^2 + (1- 1.5)^2 + (1- 1.5)^2 + (1- 1.5)^2 + (2- 1.5)^2 + (2- 1.5)^2 + (3- 1.5)^2 + (5- 1.5)^2}{10 - 1}}}

\mathbf{\sigma_x = \sqrt{\frac{22.5}{9}}}

\mathbf{\sigma_x = \sqrt{2.5}}

\mathbf{\sigma_x = 1.58}

Hence, the standard deviation is 1.58

<u />

<u>(b) When 5 is increased to a larger value</u>

When 5 is increased:

  • The median remains unchanged
  • The mean increases
  • The standard deviation decreases

Read more about median, mean, and standard deviation at:

brainly.com/question/12598273

3 0
2 years ago
Can anyone answer please?
CaHeK987 [17]

true i think i hope its correct dont want you to get it incorrect brainliest plz

8 0
3 years ago
What is the measure of
Lubov Fominskaja [6]
  • 60.......................
3 0
1 year ago
Y intercept of y=2x-3
3241004551 [841]
Since the equation is in y = mx+b form you can easily determine the y intercept based on the b value present.

Y = mx + b
Y = 2x - 3
B = y intercept = (0,-3).
7 0
3 years ago
Other questions:
  • Math short answer question! Please help!
    8·1 answer
  • Solve 2x - 8 &lt; 7.
    5·1 answer
  • Can anyone PLEEEEEEEEEEEEEEEEASE write out the chords for me??! Please I really need it ASAP
    14·1 answer
  • the ratio of the volumes of two similar solid polyhedra is equal to the square root of the ratios between their edges. True or F
    8·1 answer
  • What's the equation of the line parallel to the equation 3x + y =6 and that passes through the point (-6, -1) .
    15·2 answers
  • Compare finding the average value of a function with finding the average of n numbers.
    10·1 answer
  • A woman has a total of $ 13 , 000 to invest. She invests part of the money in an account that pays 10 % per year and the rest in
    10·1 answer
  • Tell whether x and y are proportional.
    13·1 answer
  • What’s the measure of STX?
    13·1 answer
  • Y intersect of a graph showing the points A(0,-6) and B (7,8)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!