Mathematics Middle School

Create an equation modeling the scenario. Use the equation to solve for the missing number. In your final answer, include the equation and all necessary calculations. Twice the sum of a number and seven is three times the number.

Answers

Answer 1

Answer:

2(n+7)=3n

Step-by-step explanation:

"A number" is unknown so just create a variable in this case I made it "n."

We know that sum means to add so add the variable n and 7 then going back up the beginning we see it says twice so we take that sum and times is by two and I'm using parentheses to show this. The next part of the problem says "Is" and that's an indication of an equal sign. We'll then put the equal sign after the problem we just filled out and finish off the equation with 3 times the number meaning we'll put the 3 and next to each other as another way of multiplying.

Answer 2
2 (n+7)=3n Hopefully this helps !!!

Related Questions

The figure is made up of a semicircle and a triangle. Find the perimeter. Round your answer to the nearest hundredth.

Answers

Answer:

Solution:

Here,

The perimeter of of the whole figure is 134.57ft.

Step-by-step explanation:

Here,

The perimeter of semicircle = (22/7) x 25ft

= 78.57ft

Now,

The perimeter of triangle = 7ft + 24ft + 25ft

= 56ft

Again,

The perimeter of whole figure = perimeter of semicircle +perimeter of triangle

= 78.57ft + 56ft

= 134.57ft

please help me with this i am doing a test 4 times as many as 13? (3 points)
4 + 13 = ________
4 ÷ 13 = ________
4 x 13 = ________
4 ‒ 13 = ________

Answers

Answer:

4+13=17   4÷13=0.3076923076923077  4x13=52  4-13= -9

Step-by-step explanation:

Helpppppppppppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

B

Step-by-step explanation:

Width was determined to be 6, so it would be 48= 2L + 2(6)

which equation represents the situation?
correct=brainliest

Answers

Answer:

k=m+4

Step-by-step explanation:

Answer: K=m+4

Explanation: You take mikes age (10) and Kellies age (14). Take mikes age and add 4 to that on all of his ages. It equals to all of kellies ages. Therefore Kellies age is equal to mikes age plus 4. Did that help?

pls help me

the vertices of a triangle are A(2,4) B(2,1) C(3,1).reflect the triangle in the x axis then rotate it 90 degrees counterclockwise about the orgin. what are the new coordinates of the triangle?
​

Answers

Answer:

A:(4,2) B:(1,2) C:(1,3)

Step-by-step explanation:

During a rotation 90 degrees ccw the points go from (x,y) to (-y,x)

Hip hop music makes up 75% of Landon's music library. If he has downloaded 120 hip hop songs, how many songs does Landon have in his music library? (Explain your answer/show your work)

Answers

Answer: 160 songs.

Step-by-step explanation:

75% hip hop music   -    120 songs

100% all music          -     x songs

Let's write the proportion:

[tex]\dfrac{120}{75} =\dfrac{x}{100} \\\\75x=120 \cdot 100\\75x=12000\\75x : 75 = 12000 : 75\\x = 160[/tex]

Thus, Landon have 160 songs in his music library.

What is 7/8 - 1/2 I need help...

Answers

Answer:

3/8

Step-by-step explanation:

1/2 = 4/8

7/8 - 4/8 = 3/8

Answer:

1/2 times 20 = 20/40

7/8 times 5 = 35/40

(35/40) - (20/40) = 15/40

Step-by-step explanation:

(15/40)/5 = 3/8 (simplified version)

i need help with this-

Answers

the picture is blank sir
The picture is blank

Find the volume of Prism A

The volume of prism A is _____________cubic units

Enter the number only.

Answers

Answer:

25....

Step-by-step explanation:

l *b*h....formula is applied

Answer:

25 cubic units

Step-by-step explanation:

~~~~~~~~~~~~~~~~~~~

don't mind this just write the

answer~~~~~~~~

Describe two ways the Distributive Property can be used to write equivalent expressions.

Answers

For example, apply the distributive property to the expression 3 (2 + x) to produce the equivalent expression 6 + 3x; apply the distributive property to the expression 24x + 18y to produce the equivalent expression 6 (4x + 3y); apply properties of operations to y + y + y to produce the equivalent expression 3y.

The two ways for the Distributive Property can be used to write equivalent expressions is explained below:

Distributive Property:Here we apply the distributive property to the expression 3 (2 + x) to generate the equivalent expression 6 + 3x.Now apply the distributive property to the expression 24x + 18y to generate the equivalent expression 6 (4x + 3y)

Learn more about the expression here: https://brainly.com/question/13947055?referrer=searchResults

9h + 4 - 6h + 7 *
4 points

5r - 7r *
4 points
6g -5g + 3 - 7 *
3 points
7 + 5f - 3 *
4 points
7z + 8z *
4 points

Answers

1. 3h+11
2. -2r
3. g-4
4. 5f+4
5. 15z

1/2 + 2/3 =
8/ 12 + 8 /11 =
2/7 + 6/10=

Answers

Answer:

1/2 + 2/3 = 1 1/6

8/12 + 8/11 = 1 13/33

2/7 + 6/10 = 31/35

what is y = 2x + 10 ?

Answers

it is -5 ! (this may be wrong)

simplify -2.3f+0.9f-14-4

Answers

Answer:

The Answer would be 1.4f-18

Step-by-step explanation:

-2.3f+0.9f-14-4

then you do

-1.4f-14-4

Then u would get 1.4f-18.

answer- -1.4f-18

explanation
: I did this problem before

Instead of buying 3 white t-shirts for Bobby she purchased 5. How much was each shirt if the Gap sold them at 3 for $49.95. What does each shirt cost?

Answers

Answer:

The answer should be 16.65.

$16.65 I think cause you would do 49.95 dollars divided by 3 I think

hiiii help please ahh

Answers

Answer:

Question 1 Answer : x^2 - 2y^2

Question 2 Answer: x^2[tex]\pi[/tex] - 36[tex]\pi[/tex]

The correct answer is -36

BRAINLIEST AND 30 POINTS COME QUICK SO YOU GET IT!
A scatter plot is shown below:

Graph shows numbers from 0 to 10 at increments of 1 on the x axis and number s from 0 to 10 at increments of 1 on the y axis. Scatter plot shows ordered pairs 1, 9.1 and 2, 8 and 3, 7.6 and 4, 6.1 and 5, 5 and 6, 4 and 7,4 and 8, 3 and 9, 2.5 and 10, 1.

Which two ordered pairs can be joined to draw most accurately the line of best fit for this scatter plot?
(4.5, 10) and (10, 6.5)
(0, 9.8) and (10, 1.2)
(0, 4) and (5, 0)
(0, 6) and (7, 0)

Answers

I would go with the third one

if i fart 5 times in 50 seconds each how many times do i fart in all

Answers

Answer:

5

Step-by-step explanation:

Answer:

the answer is inf

Step-by-step explanation:

bc of the word all 50 secs = 5 1 = 10 seconds although there is no cap so the answer is inf 500 = 50 farts 5000= 500 farts 5000000000000000000000000000000000000000000000000000000000000 = 500000000000000000000000000000000000000000000000000000000000 farts and its goes on and on. You probally gasse the world and broke a world record by then lol.

jk its 5

Brainlest if do all :P

Answers

Answer:

i think you need start

Step-by-step explanation:

to multiplicate the numbers

The population in a city was 40,000.00. The population rose p
person. Then the population dropped 3,000.00 and later rose
again by 4,700.00. Now the population in Broward is?
p + 41,700
p + 43,700
p + 47,700
p + 41,300

Answers

41,700 is the answer

Please distribute 3 ( 2x + 3y)

Answers

Answer:

6x+9y

Step-by-step explanation:

Pls help me hurry fast plz

Answers

Answer:

1. m=2

2. m= 2/5

3. m=5/2

4. m=6

5. m=-8

6. m=-11

7.m=6

Step-by-step explanation:

Use the slope formula to find the slope m

Slope formula=y2-y1/x2-x1

The value of 6x+9when x=5

Answers

Answer:

39

Step-by-step explanation:

6(5) + 9

30 + 9

39

Answer:

39

Step-by-step explanation:

6(5)+9=39

Please help this is worth 15 points!

Answers

Answer:

A

Step-by-step explanation:

please help am i correct

Answers

Answer:

Yes It is 108

Step-by-step explanation:

Answer:

yes u right also stop deleting my answers

Given a scale drawing of the square with a horizontal scale factor of 40% and a vertical scale factor of 240%, what are the dimensions, in units, of the scale drawing?

Your answer should fit the following format:

The length of the shorter side is _________ units, and the length of the longer side is _______ units.

Answers

Answer: The shorter side is 2 units, and the longer side is 12 units.

Step-by-step explanation: The original square is 5 units. multiply by decimal equivalents to find the new scaled units

40% of 5 is 2  That is: 0.4 × 5 = 2.0

240% of 5 is 12   That is 2.4 × 5 = 12.0

240

F - 3/4 = 1 1/2 please help !

Answers

Answer:

F = 2 1/4 or 9/4

Step-by-step explanation:

find the common denominator for both fractions and then add 3/4 to the 1 1/2. Common denominator is 4 so multiply 3/2 by 2 to get 6/4. Add 3/4 to 6/4 to get your answer.

boom roasted.

F equals 9/4 or 2 1/4

A squirrel runs across a road in 3 seconds. The road was more than 34 feet wide.

Which inequality can be used to determine the squirrel’s speed?

a. 3r greater than 34
b. 3r less than 34
c. r/3 greater than 34
d. r/3 less than 34

Answers

Answer:

A

Step-by-step explanation:

3 x r > 34

Answer:

The answer is A. 3r greater than 34

Step-by-step explanation:

Count how many times you can fill the liter bottle from the gallon jug unit 3

Answers

Where’s the graph or whatever???

Answer:

i can't count

Step-by-step explanation:

Here are two points (-3,4),(1,7) What is the slope of the line between them?

Answers

Answer:

3/4

Step-by-step explanation:

The solution is Option B.

The slope of the line between the points P ( -3 , 4 ) and Q ( 1 , 7 ) is 3/4

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

Let the first point be P = P ( -3 , 4 )

Let the second point be Q = Q ( 1 , 7 )

Now , the slope of the line between the two points is given by the formula ,

Slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Substituting the values in the equation , we get

Slope m = ( 7 - 4 ) / ( 1 - ( -3 ) )

On simplifying the equation , we get

Slope m = 3 / 4

Therefore , value of m is 3/4

Hence , slope of the line is 3/4

To learn more about equation of line click :

https://brainly.com/question/14200719

#SPJ2

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