Mathematics Middle School


Write the word sentence as an equation.

The sum of a number X and 9 is 15.

An equation that represents this word sentence is _.

























































Answers

Answer 1

Answer:

[tex]x + 9 = 15[/tex]

Algebraic (Maybe)

Step-by-step explanation:

Hope it helps..

Answer 2

Answer:

what Would I call you sister/brother

Here is your Equation with solution ❤️

A/Q, x + 9 = 15

=> x = 15 - 9

=> x = 6

If it helps don't forget to like and Mark me

Related Questions

A new service for your e-reader allows you to download electronic versions of books according to the following pricing.

Which of the following is an expression for the total cost of an order if you purchase e educational books, f classic books, and g new releases?
A. 2(2e + 4f + 10g)
B. 80(e + f + g)
C. 2(2e + 2f + 5g)
D. 2(e + 2f + 5g)

Answers

Answer: C

Step-by-step explanation:

Answer:

hey all of them is wrong it is actuly d

Step-by-step explanation:

The first angle in a quadrilateral is 150 degrees. The second angle in the quadrilateral is 30 degrees.
​The other two angles are congruent.

​What are the angle measurements, in degrees, of angle 3 and angle 4?

Answers

Answer:

angle three is 30 degrees (depending on what kind of quadrilateral it is)

angle four is 150 degrees

Step-by-step explanation:

150+30

180 and if the other two are congruent meaning equal too

than they must also be 180 degrees in totale on the other side as well.

Angle is 30 degrees

Jackson is able to craft in Minecraft A cake is crafted from a recipe that requires 3 milk, 2sugar, 1egg and 3wheat. If Jackson crafts 4 cakes how many of each resources does he need?

Answers

Answer:

Jason needs: 12 milk, 8 sugar, 4 eggs, and 12 wheat.

Step-by-step explanation:

multiply every number by 4.

Answer:

12 mills 8 sugars 4 eggs 12 wheat

Step-by-step explanation:

Teri is designing a question for the "Guess the rule" game.
Input values Output values
1 2
2 6
3 12
4 20

Which of the following equations represents a function that includes the functional pairs in the table?

Answers

Multiply the first number by its self and add it self to it so it is 4 times 4 =16. Then you add 4 so it is 16+4=20
The answer should be20

if the area of square 1 is 250units² and the area of square 3 is 120units² what is the area of square 2? Explain your reasoning.

Answers

Answer:

It 100 units

Step-by-step explanation:

the answer is 100 hope this helps

How can you use the Distributive Property to check your work when factoring?

1. Once an expression has been factored, use the Distributive Property to expand the expression. The factored expression should be the original expression.

2. Once an expression has been factored, use the Distributive Property to factor the expression. The factored expression should be the original expression.

3. Once an expression has been factored, use the Distributive Property to factor the expression. The expanded expression should be the original expression.

4. Once an expression has been factored, use the Distributive Property to expand the expression. The expanded expression should be the original expression.

Answers

I think it could be B but I am not sure
It’s B because you need to get down to 1 number

could someone please help me with this?

Answers

The answer is in the image below, btw I’m not completely sure if I’m right but hope it helps : )
the value in the top times 6. ex. 1 x 6, 2 x 6

please help me im begging you :(( show ur work

Answers

Answer:

A

Step-by-step explanation:

first I put 3 in for all the a's then I just completed the equation.

24/2-6x2 =0 sooooooo

If x = y and y = 2, then 3x =

Answers

Answer:

6

Step-by-step explanation:

x = y

y = 2, then 3x =3y=3*2=6

Express the area of the entire triangle?
What is the area?

Answers

Answer:

2x+21

Step-by-step explanation:

Area=Base*height

(x+7)*(x+3)

x*x=2x

7*3=21

2x+21

Answer:

Area=Base*height

(x+7)*(x+3)

x*x=2x

7*3=21

2x+21

Holly and Ethan decide to sell some of their books at a flea market. The booth rental costs $15, and they will sell each book for $1.50.

How many books will Holly and Ethan need to sell to make a profit of exactly $30?

Answers

Answer:

The answer would be 20 books divide 15 \ 1.50 equals 10 then multiply 10 by 2

Step-by-step explanation:

30 + 15 = 45
45 / 1.5 = 30 books

A clothing store uses a markup of 60% on all items they purchase to sell. What is the retail price of a pair of shoes that originally costs $350?

Answers

Answer:

560

Step-by-step explanation:

i added 6p percent

Answer:

350, percentage increased by 60% (percent) of its value = 560

Your friend incorrectly factors the expression below as 6​x(​3-2xy). Factor the expression below correctly. What error did your friend​ make? 18x-12xy

Answers

Answer:

6​x(​3 - 2xy) = 18x - 12x²y

Step-by-step explanation:

My friend did -12xy instead of -12x²y

6x × 2xy = 12x²y

Answer:

Read explanation

Step-by-step explanation:

Your friend forgot to take the x out of 12xy when they factored it. when you factor out the 6x, you should write the equation as 6x(3-2y)

The perimeter of an equilateral triangle with side s is 3s. Diana is making a decorative pillow for her living room. The pillow is shaped like a triangle with lace around the edges. Each side of the pillow is 7 inches long.
What is the perimeter of the pillow?

Answers

Answer:

easy 21

This is right

the answer is 21 hope this helps

Equation of the line of best fit:y=

Correlation coefficient: r=

Answers

Answer:

good night

Step-by-step explanation:

fdgvggggfenjejdndnrndn

Pls help need help ASAP 50 points you will be reported if the answer is wrong

Answers

Answer:

I think it is 10

Step-by-step explanation:

Answer: i forgot what volume is can you please tell me what it means i forgot but once i understand i will help you <3

Step-by-step explanation:

Look at pics below to answer the questions

Answers

Answer:

it wont load the pic

Step-by-step explanation:

Answer:

the first one is 3/10 and I dont know about the second one

Step-by-step explanation:

Plzzzzz help me I might lose my mind if I don’t get this done!
I already did number 1 and 2 I just need the rest. The dimensions are 5 inches top and bottom and both sides are 6 1/2 inches.

Answers

Answer:

i cant see it

Step-by-step explanation:

Answer:

we pop out at yo party, im wit the gang

Step-by-step explanation:

Please help and explain how I can do this on my own...

Answers

I believe the mode is singing
The mode is the term or item that occurs most frequently in a list. In this case, singing appears 7 times in the list, so it would be the mode.

Please help! What is -(1/2) to the fourth power?

Answers

Answer:

1/16

/20char

/20char

/20char

/20char

/20char

-0.0625 is the answer to this question. Hope I was helpful!

What is the area of a rectangle that has a length of 13.5 centimeters and a width of 2.3 centimeters? Use the formula A = lw

PLEASE HELP NO SPAM/SCAM!

Answers

A=lw
A = 13.5 * 2.3 = 31.05 centimeters squared
A = L x W
A = 13.5 x 2.3
A = 31.05cm^2

— hope this helps !!

Whats is 7 = 12v - 24?

Answers

Answer:

To the nearest tenth: v = 2.6

To the nearest hundredth: v = 2.58

Fraction form = 31/12

Step-by-step explanation:

1. Add 24 to both sides to cancel it out on the right

7 = 12v - 24

+24          +24

2. Divide each side by 12

31 = 12v

31/12 = 2.5833333

12/12 = 1v = v

v = 2.583333

It’s V=31/12

(1). 7=12v-24 (12v is a variable so you move it left hand side and change its sign)

(2). 7-12v=-24 (7 is a constant so move it to the right hand side and change its sign)

(3). -12v=-24-7 (now calculate the difference -24-7)

(4). Now it’s -12v=-31, now after that divide both sides of the equation by -12

(5). So the answer is V=31/12

Need help asap
20 points

Answers

Answer:

Caroline earns more money working for the smiths

Step-by-step explanation:

Btw this answer is only worth 10 points.

Answer: Caroline earns more money with the smiths

Step-by-step explanation:

Smiths: 6.50 per hour

Nelsons: 6.25 per hour

now that you have this data it is supposed to be self- explanatory.

Hope this helps!!

please get the right answer, I need a good grade

Answers

This is my work. Not sure that if it is correct so I would check to make sure. A got an area of 222.4 cm

Marie is bringing bagels and cream cheese to school as a birthday snack for her class. The cost of b bagels and c packages of cream cheese is 0.85b+2.5c dollars. Marie is bringing 30 bagels and 2 packages of cream cheese.
What price did Marie pay for the bagels and cream cheese?

Answers

Answer:

I don’t know this I just need points

Step-by-step explanation:

Answer:

$30.50

Step-by-step explanation:

(0.85*30)+(2.5*2)=30.5

10 EXTRA POINTS!!!! ILL GIVE BRAINLIST! PLEASE HELP ASAP

Answers

Step-by-step explanation:

2a :

Perimeter of the rectangle

=(8+6+8+6)cm

=28 cm

Perimeter of the yard

=28 (3m/2cm) cm

=28 (300cm/2cm) cm

=28x150 cm

=4200cm

=42m

Therefore, he will need 42m of fencing

2b:

Size of the garden

=(1/3)(6)(8)(150) m^2

=2400 m^2

He will need 42m of fencing

If someone said on your order please sub anything gluten free for toast what would you think?

Answers

Answer:

yep

Step-by-step explanation:

The ratio of Chocolate to Batter is C : 1, which is the unit rate.


Use the table to determine the value of C

Chocolate (cup) Batter (cup)

1/2 1

2 4

3 6

A. 2

B. 1

C. 2/3

Answers

I think it may be 2:1 (answer A)

it's the best I could think of

hope this helped!

It’s A your welcome;)

A girl's feet are negative 2 over 4 yards from the surface of a pool. A boy's feet are negative 3 over 4 yards from the surface of the pool. Determine whose feet are closer to the surface.

The girl's feet are closer to the surface of the pool because negative 2 over 4 > negative 3 over 4.
The boy's feet are closer to the surface of the pool because negative 2 over 4 > negative 3 over 4.
The girl's feet are closer to the surface of the pool because negative 2 over 4 < negative 3 over 4.
The boy's feet are closer to the surface of the pool because negative 2 over 4 < negative 3 over 4.

Answers

Answer:

They’re the same close

Step-by-step explanation:

because when they go it equals they’re the same :p

Answer:

1st Choice

Step-by-step explanation:

Trust me it is the 1st one. :) If it is correct please mark me the brainiest. :D NP

I'm solving systems and I don't understand how to do it pls helpp

Answers

Answer:

Use the process of elimination. I'll only do one example since you have 4.

Step-by-step explanation:

Let's do the first question.

2x-3y=-11

2x+y=9

Our goal here is to be left with one variable to solve, this way we can use the answer for that variable to find the other. A.K.A only find X to plug into the equation to find Y. To do this, we'll use the process of elimination, in which we need to cancel out a variable.

X seems the easiest here. To cancel 2 (in the top equation), you need to have a -2. And that -2 needs to be the x coefficient in the 2nd equation, in order for us to "cancel" it out. To get -2, you multiply 2 by -1.

-1(2x+y)= -1(9)

Note that whatever you do to one side, you need to do it to both sides! Hence, why I also multiplied 9 by -1. You should now be left with:

-2x -y = -9

Now, we cancel out the positive 2 and -2 from both equations by adding the two equations.

2x-3y= 11

+

-2x-y=-9

X cancels out, so we're left with -4y=-20. Solve for Y, which is 5.

-4y=-20

y=5

Now that you have the Y value, plug it into any of the two equations to find your X value.

2x-3y=11

2x-3(5)=11

2x-15=11

2x=26

x=13

And voilah! Our Y value is 5, and our X value is 13.

It's pretty simple once you understand what's going on. All that we did was to cancel out one variable (either X or Y) in the two equations so that we're left with only one variable to solve. If we cancel out X, we only need to solve for Y. You do this by manipulating one of the two equations (doesn't matter which one). Once you find either X or Y, all you need to is to plug it into one of the original equations. Then, you'll have both X and Y.

And that my friend, is the process of elimination. Good luck!

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