1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Reika [66]
3 years ago
13

Solve |2x + 1| = 10

Mathematics
2 answers:
IceJOKER [234]3 years ago
7 0
I believe you drop the | lines.  Then I think that it turns into 2x + 1 = 10.  Next I believe you subtract 1 from each side to get 2x = 9.  Then you divide both sides of the equation by 2 to get x = 4.5.  To check your work simply plug in 4.5 for x.  2 times 4.5 is 9, 9 + 1 = 10.  I hope this helped.
P.S. I have learned how to do most of those problems accurately
dmitriy555 [2]3 years ago
6 0
Let's solve your equation step-by-step.

<span><span>|<span><span>2x</span>+1</span>|</span>=10

</span>Solve Absolute Value.

<span><span>|<span><span>2x</span>+1</span>|</span>=10</span>We know either
<span><span><span>2x</span>+1</span>=10</span>or <span><span><span>2x</span>+1</span>=<span>−10

</span></span><span><span><span>2x</span>+1</span>=10</span>(Possibility 1)

<span><span><span><span>2x</span>+1</span>−1</span>=<span>10−1</span></span>(Subtract 1 from both sides)

<span><span>2x</span>=9

</span><span><span><span>2x/</span>2</span>=<span>9/2</span></span>(Divide both sides by 2)

<span>x=<span>9/2

</span></span><span><span><span>2x</span>+1</span>=<span>−10</span></span>(Possibility 2)

<span><span><span><span>2x</span>+1</span>−1</span>=<span><span>−10</span>−1</span></span>(Subtract 1 from both sides)

<span><span>2x</span>=<span>−11

</span></span><span><span><span>2x/</span>2</span>=<span><span>−11/</span>2</span></span>(Divide both sides by 2)

<span>x=<span><span>−11/</span>2

</span></span>Answer:

<span><span>x=<span><span><span>9/2</span><span> or </span></span>x</span></span>=<span><span>−11/</span><span>2</span></span></span>
You might be interested in
Screen shot is below Evaluate Functions From a Graph please help! thanks!
IrinaK [193]
As determined by the graph, f(-9) = 9
6 0
4 years ago
Read 2 more answers
Find the slope of the line whose equation is 8y = 4 - 3x.
Sidana [21]
The slope is 3
whatever is in front of the x is the slope

5 0
3 years ago
Read 2 more answers
ΔABC is dilated by a factor of 3 to produce ΔA'B'C'.
Rus_ich [418]

Answer:

Option B

Step-by-step explanation:

Dilation does not change the value of angle.

so angle measurement should be same as before .

Angle A= 37

Scale factor is 3 so multiply length by 3

So A'C'= 3×5 =15

7 0
2 years ago
Please help with my homework!
Jobisdone [24]

Answer:

180-123= 57

57+42=99

180-99=81

x=81°

6 0
4 years ago
A phone company charges $.25 for the first minute of a long distance call and $.07 for each addition minute. write an equation t
Mamont248 [21]

The cost C of a long distance call as a function of the length t is C(t) = 0.25 + 0.07t and the number of minutes is 25 minutes

<h3>What are linear equations?</h3>

Linear equations are equations that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient

<h3>How to determine the solution to the system?</h3>

A system of linear equations is a collection of at least two linear equations.

In this case, the given parameters are:

Charge for first minute = $.25

Rate for additional minute = $.07 per minute

Let the number of minutes be t and the total cost be C(t)

So, we have:

C(t) = Charge for first minute + Rate for additional minute * x

This gives

C(t) = 0.25 + 0.07t

When the total cost is $2, the equation becomes

0.25 + 0.07t = 2

Subtract 0.25 from both sides

0.07t = 1.75

Divide both sides by 0.07

t = 1.75/0.07

Evaluate the quotient

t = 25

Hence, the number of minutes is 25 minutes

Read more about linear equations at:

brainly.com/question/14323743

#SPJ1

6 0
2 years ago
Other questions:
  • True or false by definition a simple random sample of size n
    10·1 answer
  • The vertex of the parabola is at the point (2,-5). which of the equations below could be the one for this parabola?
    14·2 answers
  • 65/1000 in simplest form
    6·2 answers
  • What is the area of Mr. Prete's front yard?
    7·1 answer
  • WILL GIVE 30 POINTS, ANSWER QUICKLY BEFORE SOMEONE STEALS THE POINTS!
    13·2 answers
  • Find the Value of A. a/15 = 5
    9·2 answers
  • Please help ;p with math math hard last question plz help i on have 3 minutes
    11·2 answers
  • Will give brainliest! thanks :)
    15·2 answers
  • PLEASE HELP! OFFERING 20 POINTS, EVEN THOUGH IM RUNNING OUT OF POINTS DUE TO THE AMOUNT OF QUESTIONS I HAVE BEEN ASKING
    15·2 answers
  • What is the domain and range of the function shown on the graph below?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!