what expression is equivalent to 2x+9-x+3? show your answer is correct by substituting a value for x.

Answers

Answer 1

Answer:

Step-by-step explanation:

Given

2x + 9 - x + 3

What's equivalent

Solution

2x - x + 9 + 3             The terms have been rearranged. Combine

x + 12

Test.

x = 5

2(5) + 9 - 5 + 3

10 + 9 - 5 + 3

19 - 5 + 3

14 + 3

17

x + 12

5 + 12 = 17


Related Questions

PLEASE HELP!!
BRAINLIEST

Answers

Answer:

Step-by-step explanation:

BRAINLIEST

Can someone pleast help me with this
can you right a opening paragraph stateding why kids should do sports please, thanks!

Answers

You should do sport because it gives you a lot of exercise and makes your body healthy. Sports are important because it makes people happy and it shows from studies that oscillatory increases a lot from sports. Sports are fun and exciting and it boots blood flow to the brain. It controls your body weight and it even makes u gain more skills! Kids have a way of breaking bones but sports help bones strengthen. And sports help with anxiety and even depression! I think kids playing sports are a great ideas because every kid needs some fun once and a while

Distributive Property to find (a+8)(a-3)

Answers

Answer:

[tex]a^{2} + 5a -24[/tex]

Step-by-step explanation:

For the distributive property, it is like multiplying each term by the other whole group.

For this problem we can set it up like this:

a(a-3) + 8(a-3) =

a^2 - 3a + 8a - 24 =

a^2 + 5a - 24

A circle has a circumference of 8 centimeters. What is the circle's
diameter? Use 3.14 for pi and round your answer to the nearest tenth.

PLS HELP!!! No links pls and ty <3

Answers

Formula for the Circumference of a Circle = pi x diameter

---The diameter is the same thing as 2 x radius

Circumference = 8

pi = 3.14

Diameter = d

---First, plug in what we know

8 = 3.14 x d

---Divide by 3.14 to get d by itself

d = 8 / 3.14 = 2.54777

---Round to the nearest tenth

d = 2.5 cm

Hope this helps!

Answer:

d=2.5

Solution:Circumference:C=πd8=πdSince we can't simplify this equation yet, we can divide both sides by 3.14 (which is the same as pi) in order to isolate d:8÷3.14=dd=2.5

Hope it helps.

Do comment if you have any query.

The PE room at school has a variety of colored balls that can be used to play in the school yard. There are 16 red balls, 12 orange balls, 8 yellow balls, and 11 pink balls.
What is the probability that you are going to get a BROWN ball?

Answers

Answer:

0%

Step-by-step explanation:

There are no brown balls, so therefore it is impossible to get one.

Take look at this! Please see if you can figure it out. :(

Jeff Claims that the expression -6(2m-4) is equivalent to -12m-4. Is he correct? Explain your answer.

Thank you

Answers

well -6(2m-4) is equal to -12m+24

if you do like terms you’d do
-6(2m) and -6(-4)
-6(2m)= -12m
-6(-4)=24

so he is wrong.

Determine whether each of the following is a characteristic of a protist, fungus, or both. Unicellular Stationary Reproduces through spores Eukaryotic Cilia Autotrophic

Answers

Answer:

100% correct

Step-by-step explanation:

The properties of the protists differ from that of the fungi but they are both eukaryotic organisms and are unicellular.

What is a protist?

A protist is an organism that belongs to the Kingdom Protista. Fungus are the organisms that belong to the kingdom fungi.

Now, let us differentiate between the properties of the protists and the fungi;

Unicellular - both fungi and protists

Stationary - fungi

Reproduces through spores - fungi

Eukaryotic - both fungi and protists

Cillia - protists

Autotrophic - fungi

Learn more about protists: https://brainly.com/question/365923

Write the expression 6
7
12
in radical form.

Answers

To write the expression [tex]6 \frac{7}{12}[/tex]  in radical form.

To express the radical form in simplest it just means simplifying the radical so that there are further no more square root, cube root etc.

Use the rule:

[tex]a\frac{x}{y}[/tex] = [tex]\sqrt[y]{a^{2} }[/tex]

Apply this rule on the the given expression:

[tex]6\frac{7}{12} = \sqrt[12]{6^{7} }[/tex]

Therefore, the expression in radical form is [tex]\sqrt[12]{6^{7} }[/tex]

2. If you have an average of 82 after 4 math tests, what do you need on the 5th test to increase your average to 85?
a. 88
b. 92
c. 95
d. 97

Answers

Answer:

A

Step-by-step explanation:

you dont need much to bring an 82 to an 85

square root (5/6)^2 help i need it fast​

Answers

I think it’s just 5/6

Tom makes ​$296.10 in 6 days. How much does he make in 5 ​days?

Answers

answer: 246.75
math problem: 296.10/6= 49.35
49.35*5= 246.75

can anyone help me with this math question

Answers

12 boys

hope it helps...!!!

ANWSER ASAP RIGHT ANWSER GETS BARINLIST

A land snail, a clam, and an octopus all share this body structure:

Question 22 options:

gills


muscular foot


segmented bodies


jointed appendages

Answers

Answer:

A muscular foot

Step-by-step explanation:

hope this helps :)

this is really confusing pls help! :)

Answers

Number of cubes increases by 3 for each term.

an= 3n+1
The answer is an=3n+1 you are welcome

-8x+19<-13 Solve inequalities

Answers

[tex]~~~-8x +19 < -13\\\\\implies -8x < -13 -19\\\\\implies -8x < -32\\\\\implies x > \dfrac{-32}{-8}\\\\\implies x > 4[/tex]

I need help, if you give answer ASAP I’ll reward a lot of points!!

Answers

Answer:

A = 31.875 inches squared

Step-by-step explanation:

Area of a parallelogram is bh

b = 12 and 3/4 is just 12.75 inches

h = 2 and 1/2 is just 2.50 inches

Multiply these together and you get the area,

A = (12.75)(2.50) = 31.875 inches squared

Answer:

31.875 (31.88 rounded)

Step-by-step explanation:

A =b x h

A =12.75 x 2.5

A = 31.875

----------------------

12.75 = 12 [tex]\frac{3}{4}[/tex]

2.5 = 2[tex]\frac{1}{2}[/tex]

whats 1784 rounded off

Answers

Answer:

1780 is the best answer

Step-by-step explanation:

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE let

Answer:

Depends on which digit r you asking for

thousands: 2000

hundreds:  1800

tenths: 1780

units: 1784

SYSTEN
REV.
REF. DWG. OR B/M
DATE:
Adrian and Jeremy are running around a track. It takes Adrian 15 minutes to
run around the track one time. It takes Jeremy 18 minutes to run around the
track once. How many minutes would it take for both boys to return to the
starting point at the same time?
How do I solve this?

Answers

Using the least common factor, it is found that it would take 90 minutes for both boys to return to the starting point at the same time.

How do we find the least common factor of two amounts?

To find the least common factor, we factor the numbers by prime factors, and then multiply these factors.

The lcm represents the periodicy, that is, when two periodic amounts will be at the same value.

In this problem, the periods are of 15 minutes and 18 minutes, hence:

15 - 18|2

15 - 9|3

5 - 3|3

5 - 1|5

1 - 1

Hence:

lcm(15,18) = 2 x 3 x 3 x 5 = 90.

It would take 90 minutes for both boys to return to the starting point at the same time.

More can be learned about the least common factor at https://brainly.com/question/24873870

Find the volume of each sphere. Be sure to include appropriate units.
(Show your work)

Answers

Answer:

2145.5m^3

679.2yard

Step-by-step explanation:

v

[tex]volume \: of \: a \: sphere = \frac{4}{3}\pi \: r {}^{3} \\ when \: r = 8 \\ volume = \frac{4}{3} \times \frac{22}{7} \times 8 {}^{3} \\ volume = \frac{4}{3} \times \frac{22}{7} \times 8 \times 8 \times 8 \\ volume = \frac{4 \times 22 \times 512}{3 \times 7} \\ volume = \frac{45056}{21} \\ volume = 2145.5m {}^{3} \\ \\ for \: the \: second \: shape \\ volume = \frac{4}{3} \times \frac{22}{7} \times 5.5 {}^{3} \\ = \frac{4}{3} \times \frac{22}{7} \times 166.373 \\ = \frac{14641}{21} \\ = 697.2yard[/tex]

PLEASE HELP!! 20 POINTS!!

Answers

Answer:

yea

Step-by-step explanation:

Sara uses ribbon to make hair bows. The length of each ribbon Sara uses is represented by the line plot shown. What is the difference, in feet, between one of the pieces of ribbon that has the longest length and one of the pieces that has the shortest length?

Answers

1 foot because if you do 1 1/2 - 1/2 = 1

If you answer this question right, I'll give you (BRAINLIEST)

A social studies test has 4 true-or-false questions. The following list shows the possibilities for a student's responses to these questions.

TTTT, TTTF, TTFT, TTFF, TFTT, TFTF, TFFT, TFFF, FTTT, FTTF, FTFT, FTFF, FFTT, FFTF, FFFT, FFFF

If a student randomly guesses for all four questions, what is the probability they get all four questions correct?

Enter your answer as a fraction, like this: 3/14

Answers

Answer:

1/16

Step-by-step explanation:

To find probiblity all you have to do is divide the number of events by the number of possible outcomes

There are 16 possible outcomes

and there is only 1` way that the student can get all 4 questions right

so the answer is: 1/16

Answer:

1/16

Step-by-step explanation:

Number of possible outcomes = 16

Only one set will be the correct option

P(getting all four questions correct) = 1/16

Bill bought a certain food in which there are 300 calories in 100 g of that food. What is the number of calories in a 20 g portion of this food?

Answers

Answer:

60

Step-by-step explanation:

If there are 300 calories in 100g of Bill's food, then we can divide 5 on both  sides to find the number of calories in a 20g portion of this food: 300/5=60 calories.

2(x−3) = 2x + 15 how many solutions

Answers

Answer:

0

Step-by-step explanation:

2x-6=2x+15

2x-2x=15+6

0x/0=21/0

x=0

42+5t=8t
Solve the equation
WHAT DO I DO????!!!

Answers

Answer= t=14
Equation 42+5(14)=8(14)

Can someone pls help ?!

Answers

Answer:

120 cubed inches

Step-by-step explanation:

5 x (3 x 8)

5 x 24

120

Answer:

Step-by-step explanation:

Volume of rectangular prism = lwh

                                                 = 8 * 3 * 5

                                                 = 120 cubic inches

Alice was sitting on a dock looking at a lake. She picked up a stone and through it in the air and out

toward the lake. It seemed like it was in the air for a long time. The equation that can be used to

model the height of the stone (in feet) as it relates to the time in the air in seconds) is given by

h(t) = 5 + 50 - 16t2. In order to solve for how long the stone was in the air, Alice will need to use the

quadratic equation which is:

|-bb4ac

2a

X

Answers

A quadratic equation is in the form of ax²+bx+c. The time for which the stone was in the air is 3.526.

What is a quadratic equation?

A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers.

It is written in the form of ax²+bx+c.

As the height of the stone will be zero or can say that the stone will be at the ground in only two conditions. When the stone will be just thrown and when the stone will complete its flight. Therefore, we can substitute the value of heigh h in the function as 0 to get those two timings.

[tex]h(t) = 5 + 50t - 16t^2\\\\0 = 5+50t - 16t^2[/tex]

Substitute the quadratic equation in the formula of the root of the quadratic function,

[tex]x = \dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\t = \dfrac{-50\pm\sqrt{(50)^2-4(-16)(5)}}{2(-16)}\\\\t= -0.089, 3.526[/tex]

Hence, the time for which the stone was in the air is 3.526.

Learn more about Quadratic Equations:

https://brainly.com/question/2263981

#SPJ1

Simplify 5+1(-24)+(-21×1)

Answers

the answer to “5+1(-24)+(-21×1)” is: -40

One factor of f (x ) = 5 x cubed + 5 x squared minus 170 x + 280 is (x + 7). What are all the roots of the function? Use the Remainder Theorem.
x = –4, x = –2, or x = 7
x = –7, x = 2, or x = 4
x = –7, x = 5, or x = 280
x = –280, x = –5, or x = 7

Answers

The roots of the function f(x) = 5x³ + 5x² - 170x + 280 are given by x = 4, x = 2 or x = -7

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Given that x + 7 is the root of 5x³ + 5x² - 170x + 280, hence:

(5x³ + 5x² - 170x + 280) / (x + 7) = 5x² - 30x - 40

Hence:

(5x³ + 5x² - 170x + 280) = (x + 7)(5x² - 30x - 40)

= 5(x² - 6x - 8)(x + 7)

= 5(x - 4)(x - 2)(x + 7)

The roots are at:

0 = 5(x - 4)(x - 2)(x + 7)

x = 4, x = 2 or x = -7

The roots of 5x³ + 5x² - 170x + 280 are x = 4, x = 2 or x = -7

Find out more on equation at: https://brainly.com/question/1214333

Jaime rolls a number cube and spins a colored spinner. The spinner is divided into three equal sections. The tree
diagram shows all the possible outcomes that can occur.

Answers

Answer:

Step-by-step explanation:

The mountain in "The Negro Artist and the Racial Mountain" is considered as an obstacle for Negro artists who wish for others to recognize their work. This isn't just part of their job, but it's part of a racial dispute because of their color. Langston Hughes, the author, describes these Negro artists as very talented people. These are also people who believe they can make it big as artists, but they wish to be white to do so. Black artists think they can't be accepted as people, let alone artists. So the mountain in the essay represents a huge obstacle these people have to achieve. That obstacle is being accepted by everyone else, and that includes them looking past their color before appreciating their art.

Hope this helps you!!

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