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Harlamova29_29 [7]
4 years ago
9

How do I do this problem 4(5n-7)=10n+3

Mathematics
1 answer:
Natasha_Volkova [10]4 years ago
7 0
A) get rid of the parenthesis 4(5n-7) = 20n-28,

so 20n-28=10n+3===>transpose 10n from the left to the right it becomes -10n & transpose -28 from the left to the right it becomes +28

10n=31 & n=31/10 ==> n=3.1
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maxonik [38]
The solution to this would be x=2, y=-2

7 0
3 years ago
Please answer this multiple choice question for 27 points and brainliest!!
storchak [24]

Answer:

A

Step-by-step explanation:

The equation will be in the form

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 5) and (x₂, y₂ ) = (2.5, 0) ← 2 points on the line

m = \frac{0-5}{2.5-0} = - 2

The line crosses the y- axis at (0, 5) ⇒ c = 5

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5 0
4 years ago
99.999 rounded to the nearest tenth would be?
ale4655 [162]

Answer:

Look at the place after the tenths, it is more than 5.

99.999

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Rounded to the nearest tenth would be:

<h2>100.0</h2>
4 0
4 years ago
Read 2 more answers
Write and equation for (-1,2) and (0,0)
Natali5045456 [20]
Since the slope is -2 because
x1: -1 x2: 0
y1: 2  y2: 0
y2-y1/x2-x1 = slope (0-2/0+1= -2/1 = -2)

You would havr to change it into point slope form so it would look like this
Y-2 = -2(x+1)
 y-2 = -2x -2
   +2          +2
y = -2x + 0
Hope this helps:)

8 0
4 years ago
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gayaneshka [121]

The domain of the graph is  -8 while the range of the graph is -4\leq x.

  • The domain of the graph is input values of "x" for which the function exists while the range is the output values "y" for which the function exists.

For the graph, the domain will be the values of the graph along the x-axis.

  • Domain = -8 (Note that -8 is not included)

  • For the range, the interval is given as: -4\leq x. Note that the value of 4 is not included since it is opened.

Learn more on domain and range here: brainly.com/question/1942755

3 0
3 years ago
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