The sum of 2 times a number and 8 is 7

Answers

Answer 1

Answer:

The number is -1/2

Step-by-step explanation:

Let x be the number

2x+8 = 7

Subtract 8 from each side

2x+8-8 = 7-8

2x = -1

Divide each side by 2

2x/2 =-1/2

x = -1/2

The number is -1/2

Answer 2

Answer:

2x + 8 = 7

x = -1/2

Step-by-step explanation:

"a number" can be signified by a variable.

So 2 times a number would give you 2x

And 8 would mean to add 8.

Is 7 means the end result is 7.

So 2x + 8 = 7

x = -1/2


Related Questions

A taxi company charges a flat fee of $2.50 plus $0.95 for each mile
traveled.
Which of the following equations correctly represents the total taxi
fare, t, given the number of miles traveled, m?

Answers

Answer:

t=0.95m+2.5

Step-by-step explanation:

Answer:

tm+3.45=?

Step-by-step explanation:

I think

hope this helps

Which terms are like terms in the following expression? 3x + 3xy – 2x + 5y + 5x2
3x, -2x and 5x2
3x and -2x
3x, 3xy, -2x and 5y
All terms are alike.

Answers

Answer:

3x, -2x

Step-by-step explanation:

they both have x as a variable

Answer:

3x, -2x

Step-by-step explanation:

PLEASEEEEEEEER HELP ME!!

Answers

i think for movies the cost is $1.75 and for video games is $5.5.

Please help!!!!!
Fill in the following table with values, observe the pattern, and write an equation relating the second and fourth columns.

Answers

Answer: Answer from Plato

Step-by-step explanation:

Answer:

For the sin table:

Step-by-step explanation:

what isthe area of the circle or semicircle 2.5​

Answers

Answer:

I don't know what your question was but the radius would eqaul .089 so the area is 2.5

Answer:

0.89

Step-by-step explanation:

the area of the. ..............

PLEASE ANSWER BRAINIEST

Answers

Answer:

first box is 18 second is 32 and third is 8

Step-by-step explanation:

Answer:

Step-by-step explanation:

3   6     8

18   36   48

your ratio is 1:6, so  however many boxes you have, just multiply by 6 to get the candle number

What is the equation of the line that passes through the point (−3,4) and has a slope of 1 ?

Answers

Answer:

y = x + 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

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

Here m = 1, thus

y = x + c ← is the partial equation

To find c substitute (- 3, 4) into the partial equation

4 = - 3 + c ⇒ c = 4 + 3 = 7

y = x + 7 ← equation of line

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We have following equation to find the point-slope form of the linear functions.

[tex]y - y(0) = m \times ( \: x - x(0) \:) [/tex]

In which :

[tex]y(0) = y \: \: given \: \: point = 4[/tex]

[tex]x(0) = x \: \: given \: \: point = - 3[/tex]

[tex]m = slope = 1[/tex]

Now just need to put the coordinates and the slope in the above equation.

[tex]y - 4 = 1 \times ( \: x - ( - 3) \: )[/tex]

[tex]y - 4 = x + 3[/tex]

Add sides 4

[tex]y - 4 + 4 = x + 3 + 4[/tex]

[tex]y = x + 7[/tex]

Done...

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ex.
What is the measure of angle K?
11°
O 25°
O 50°
O 65°

Answers

Answer: 25

i just took the quiz, it’s 25.


6. A graph with a
slope decreases from left to right.

Answers

Please provide an image or other when you ask a question, as you’re not gonna get a clear answer

Answer:

A graph with a slope that decreases from left to right is negative. This slope would mean as x approaches +infinity y would approach -infinity and vice versa. So as x increased y would decrease and as x decreased y would increase. This is called an inverse relationship because the values change in opposite ways.

Find the slope of the line through the pair of points.
(1,15) and (-3,-6)

Answers

Answer:

21/4

Step-by-step explanation:

-6-15/ -3-1= -21/-4=21/4

which is the estimate of each product 11/12 x 4/5

Answers

Answer:

[tex]\frac{11}{15}[/tex]

Step-by-step explanation:

[tex]\frac{11}{12} *\frac{4}{5}[/tex]

You can simplify to make life easier

[tex]\frac{11}{3}*\frac{1}{5}=\frac{11}{15}[/tex]

PLEASE HELP ME I REALLY NEED HELP IN ALGEBRA

(a) Does the graph represent a constant-rate relationship?

(b) Explain how you determined your answer in part A.

(c) If this is a constant-rate relationship, what is the constant rate?

Answers

Answer:

A no it is not

B his is because if you look at 1 on the x axis line you will see it matches 1 on the y axis but if you look at 4 on the x axis it is 2 on the y axis so it is not constant

C Thee was no constant relationship

Write an equation of a vertical line that contains the point (-2,5)

Answers

Answer:

x=-2

Step-by-step explanation:

The line is vertical and/or undefined and it passes through the point (-2,5).

Solve 9(8x + 5) + 7 if x = 0.25.

pls help

Answers

Answer: 70

Multiply 8 by 0.25. Add 5 multiply that by nine then add 7.

Answer:

x= 9/14 or 0.642857

Step-by-step explanation:

Instantaneous vs Average Rate of change
PLEASE AND THANKSSS:))

Answers

One is average 2 is average 3 is instantaneous 4 is average 5 is average 6is instantaneous

WILL PAY 40 POINTS AND BRAINLIEST!!!!
A line goes through the points (-3 1) and (-2 4)
(a) What is the slope of the line? Show your work.
(b) Write the equation of the line in point-slope form. Show your work.
(c) Write the equation of the line in slope-intercept form. Show your work.

Answers

Answer:

Part A)

The slope is 3.

Part B)

[tex]\displaystyle y-1=3(x+3)[/tex]

Part C)

[tex]\displaystyle y=3x+10[/tex]

Step-by-step explanation:

We know that the line goes through the points (-3, 1) and (-2, 4).

Part A)

To find the slope of a line given two points, we can use the slope formula:

[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Where (x₁, y₁) and (x₂, y₂) are our two points.

So, let’s let (-3, 1) be (x₁, y₁) and let (-2, 4) be (x₂, y₂). Substitute appropriately:

[tex]\displaystyle m=\frac{4-1}{-2-(-3)}[/tex]

Evaluate:

[tex]\displaystyle m=\frac{3}{-2+3}=\frac{3}{1}=3[/tex]

Hence, the slope of our line is 3.

Part B)

Point-slope form is given by:

[tex]\displaystyle y-y_1=m(x-x_1)[/tex]

Where m is our slope and (x₁, y₁) is a point.

So, let’s substitute 3 for m.

For our point, we can use either of the two given. Let’s use (-3, 1) for consistency. So, let (-3, 1) be (x₁, y₁). Therefore:

[tex]\displaystyle y-1=3(x-(-3))[/tex]

Simplify. Hence, our point-slope form is:

[tex]\displaystyle y-1=3(x+3)[/tex]

Part C)

To rewrite into slope-intercept form, we can just solve for y from our point-slope form. So, we have:

[tex]\displaystyle y-1=3(x+3)[/tex]

Distribute on the right:

[tex]\displaystyle y-1=3x+9[/tex]

Add 1 to boths sides. So, our slope-intercept equation is:

[tex]\displaystyle y=3x+10[/tex]

help please
can you solve this?im times so i need help fast.

Answers

Answer:

C. 1 4 2

Step-by-step explanation:

Find the slope of the line that passes through (-3,4) and (-2,-8)

Answers

Answer:

-12

Step-by-step explanation:

The slope formula is y2-y1 divided by x2-x1

I plugged it in and got

-12

I hope this helps :>

graph the function h(x) = (x - 5)2+ 6

Answers

Answer:

x = 2

Step-by-step explanation:

have a nice rest of your day

Which expression is equivalent to (2x^2+3x-4)-(x^2-2x+4)​

Answers

Answer:

3x + 2 = 14

Step-by-step explanation:

·Has to be a number​

Answers

Answer:

x=-4

Step-by-step explanation:

HELP PLZ can someone simplify this equation

Answers

7n² + 48n + 42

Combine like terms, -8n x -6n= 48n

                                  -6 x -7= 42

Answer:

-49n^3 -n²+92n+42

Step-by-step explanation:

(7n²-8n-6)(-6n-7)

-42n^3-49n²+48n²+56n+36n+42

-49n^3 -n²+92n+42

how do u all feel about this

Answers

Answer:

BROOOOOO THAT DOPPPEEEE i loveee the colors also its super complex great job

Step-by-step explanation:

Solve.

24 + d = 30

d =

Answers

Answer:

I think d = 6 because 24 + 6 = 30

Answer:

d=6

Step-by-step explanation:

what is the equation shown on this graph?​

Answers

Answer:

y=1

Step-by-step explanation:

there is no slope therefore dont place it. however there is a Y intercept.

2x+y =8 and y=x-7 solve by substitution

Answers

Answer:

you can do this by this please vote also

plz help this is my last try!!!!!!!!!!!!!

Answers

Answer:

4x^6

Step-by-step explanation:


Determine the intercepts of the line.
x-intercept(_,_)
y-intercept(_,_)

Answers

Answer:

the X - intercept is (-7,0)

the Y - intercept is (0,2)

Step-by-step explanation:

the Y intercept is where the line crosses the Y axis

the X intercept is where the line crosses the X axis

Hope this helps

For questions 1 - 2, put the equation in the form ax2+bx+c = 0.
1. (x+2)2 = -X-2

Answers

Answer:

x^2+6x+6=0

Step-by-step explanation:

(x+2)^2=-x-2

(x+2)(x+2)=-x-2

x^2+4x+4=-x-2

     +x   +2=+x+2

x^2+6x+6=0

I just need help with the graphing the rest of them are all drop downs lol​

Answers

Begin by putting a point on -2 on the y axis. Next, repeat going up 3 and 1 to the right.
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