Plz help no guessing

Mathematics

2 answers:

Scrat [10]3 years ago

5 0

The answer is D, x = 3.

To find the answer to this, we need to solve for x.

4(x - 1) = 2(x + 1)

The first step is to either use the distributive property and get rid of the parenthesis or to divide each side by two. This shows division by two.

2(x - 1) = x + 1

Now we can get rid of the parenthesis

2x - 2 = x + 1

We want to get the numbers on one side and the variables on another

2x - x = 1 + 2

x = 3

belka [17]3 years ago

3 0

Okay, So first you need to use multiply 4 by (x-1), which is 4x-4. Then you multiply 2 by (x+1), which is 2x+2. At this point you have 4x-4=2x+2. Now you combine the sides so one has the x variable and the other has a solo number. Subtract 2x from both sides and add four to both sides. Now you have 2x=6. Divide both sides by two to get x=3.

The answer is D. X=3

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A data set has a median of 12, an upper quartile of 15, a lower quartile of 10, a minimum of 4, and a maximum of 20. Which state

ololo11 [35]

Given:

A data set has a median of 12, an upper quartile of 15, a lower quartile of 10, a minimum of 4, and a maximum of 20.

To find:

The correct statement for the box plot.

Solution:

Lower quartile is 10 and upper quartile is 15, so the box will go from 10 to 15.

Median of the data set is 12, so a line dividing the box will be at 12.

Minimum value is 4 and lower quartile is 10, so the left whisker will go from 4 to 10.

Upper quartile is 15 and maximum value is 20, so the right whisker will go from 15 to 20.