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WINSTONCH [101]
3 years ago
8

What is the solution to the equation 3x + 2(x − 9) = 8x + x − 14?

Mathematics
2 answers:
White raven [17]3 years ago
8 0
B is the correct answer, -1.
Isolate the variable by dividing each side by factors that don't contain the variable.
Zolol [24]3 years ago
8 0
It would be -8 because x is equal to 1 so if you do 1 - 9 it would equal -8
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The table shows the prices of 8 different treadmills at a sporting goods
irakobra [83]

Answer:

mean: $837.50; median: $810; mode: $810; range: $645

Step-by-step explanation:

Discounted prices are given as:

$640, $810, $755, $810, $1175, $900, $1080, $530

a. Mean = Sum of the Number of Term ÷ Total number of Terms

Total number of term = 8

Mean = ($640 + $810 + $755 + $810 + $1175 + $900 + $1080 + $530) ÷ 8

Mean = $837.50

b) Median.

$640, $810, $755, $810, $1175, $900, $1080, $530

The first step is to rearrange the discounted prices =

$530, $640, $755, $810, $810, $900, $1080, $1175

Second step is to find the number in the middle

$530, $640, $755, )$810, $810, ($900, $1080, $1175

= ($810 + $810) ÷ 2

= $1920 ÷ 2

= $810

Median = $810

c) Mode

This is calculated as the prices that occurs the most or more than once amongst the Discounted prices.

Discounted prices = $530, $640, $755, $810, $810, $900, $1080, $1175

Price that occurs more than once = $810.

Mode = $810

d. Range

This is calculate as the Highest Discounted price - Lowest Discounted price.

Highest Discounted price = $1175

Lowest Discounted price =$530

Range = $1175 - $530

= $645

6 0
3 years ago
If each data is increased by a constant K then find it's mean ?? answer fast pleaseeeeeeeeeee​
MArishka [77]

Answer:

The mean is also increased by the constant k.

Step-by-step explanation:

Suppose that we have the set of N elements

{x₁, x₂, x₃, ..., xₙ}

The mean of this set is:

M = (x₁ + x₂ + x₃ + ... + xₙ)/N

Now if we increase each element of our set by a constant K, then our new set is:

{ (x₁ + k), (x₂ + k), ..., (xₙ + k)}

The mean of this set is:

M' = ( (x₁ + k) + (x₂ + k) + ... + (xₙ + k))/N

M' = (x₁ + x₂ + ... + xₙ + N*k)/N

We can rewrite this as:

M' = (x₁ + x₂ + ... + xₙ)/N + (k*N)/N

and  (x₁ + x₂ + ... + xₙ)/N was the original mean, then:

M' = M + (k*N)/N

M' = M + k

Then if we increase all the elements by a constant k, the mean is also increased by the same constant k.

6 0
3 years ago
Help I'll give brainliest!!!
natka813 [3]

Answer:

It’s (-3, -4)

Step-by-step

I did this program too.

6 0
3 years ago
If a =c+2 what is the value of c when a=5
nikdorinn [45]
(5)=c+2                  Plug in your a value then combine like terms to find c
3=c
3 0
3 years ago
Solve the inequality and enter your solution as an inequality comparing the variable to a number X + 24 > 67
Free_Kalibri [48]

Answer:

X > 43

Step-by-step explanation:

The inequality is given by :

X + 24 > 67

We need to solve the inequality.

Subtract 24 from both sides of the inequality.

X + 24 -24 > 67 - 24

X > 43

So, the solution of the inequality is more than 43.

6 0
3 years ago
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