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Alex777 [14]
3 years ago
9

3(x – 4) + 7 = 5x? Help please.

Mathematics
2 answers:
777dan777 [17]3 years ago
8 0

Answer:

-5/2

Step-by-step explanation:

Let's solve your equation step-by-step.

3(x−4)+7=5x

Step 1: Simplify both sides of the equation.

3(x−4)+7=5x

(3)(x)+(3)(−4)+7=5x(Distribute)

3x+−12+7=5x

(3x)+(−12+7)=5x(Combine Like Terms)

3x+−5=5x

3x−5=5x

Step 2: Subtract 5x from both sides.

3x−5−5x=5x−5x

−2x−5=0

Step 3: Add 5 to both sides.

−2x−5+5=0+5

−2x=5

Step 4: Divide both sides by -2.

-2x/2 = -5/2

x= -5/2

dexar [7]3 years ago
3 0

Answer:

x=-2.5

Step-by-step explanation:

3x-12+7=5x

-5=2x

-2.5=x

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Answer:

set 1: mean 5.72 repeated

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set 2: mean: 5.27 repeated

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Step-by-step explanation:

7 0
3 years ago
Find the distance between the points (4, 3) and (0, 6).
Ilia_Sergeevich [38]

Answer:

5

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√(0 - 4)² + (6 - 3)²

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√(16) + (9)

√25

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8 0
3 years ago
13) If AOBC is a rectangle whose three vertices are A(0,3), (0,0) and B(5,0).
Levart [38]

Answer:

(b) 68

Step-by-step explanation:

Distance between two points:

Suppose that we have two points, (x_1,y_1) and (x_2,y_2). The distance between them is given by:

D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Diagonal:

Diagonals are a line between opposite points in a square.

In this question, it is between A(0,3) and B(5,0), and between (0,0) and (5,3). Both these diagonals have the same measure, and are the distance between these points. So

D = \sqrt{(5-0)^2+(3-0)^2} = \sqrt{5^2 + 3^2} = \sqrt{34}

Then sum of the squares of its both diagonals is units

Both diagonals measure \sqrt{34}. Sum of squares is:

(\sqrt{34})^2 + (\sqrt{34})^2 = 34 + 34 = 68

The correct answer is given by option b.

6 0
3 years ago
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Reina surveyed her friends, asking each of them, "How many times have you been to the amusemer
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  • The median is an accurate measure of center.
  • The interquartile range is an accurate measure of spread.

<h3>How to find the Distribution of data?</h3>

Probability plots might be the best way to determine whether your data follow a particular distribution. If your data follow the straight line on the graph, the distribution fits your data. This process is simple to do visually. Informally, this process is called the “fat pencil” test.

For skewed distributions, it is quite common to have one tail of the distribution considerably longer or drawn out relative to the other tail.

As, it is known that, when the distribution of data is left-skewed, the mean is less than median.

  • In any research of distribution, the distribution is described by its shape. If there are more higher values than lower values, the distribution is skewed left.

  • The distribution can be described by its center. If the distribution is skewed left or right, the median is an accurate measure of center.

  • The distribution can be described by its spread. If the data set does not have an outlier, the interquartile range is an accurate measure of spread.

Learn more about distribution of data here:

brainly.com/question/304810

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