Mathematics Middle School

The length of a rectangle is 3 meters less than twice its width.
a. Write an equation to find the length of the rectangle.

Answers

Answer 1
since this is going to be an algebraic equation we have to put a variable so ill go with the variable N. Now making an algebraic equation is pretty easy once you have the concept but they will progress over time 

N is our variable aka our width
and 3 is our number aka our length
now since it, 2 less than that will be in our equation as 2n 
as you know we have to use our variable and our number which is just going to subtract and our answer is 2n-3 
when making equation you may use any letter that you would like it does not matter

Related Questions

Find the length of each side

Answers

This can only be answered if we know that segments BG, CF, and DE are parallel. I don't see that written anywhere. I'll assume that is given.

To find GF:

AG is to AB as GF is to BC

AG/AB = GF/BC

20/16 = GF/12

5/4 = GF/12

4GF = 5 * 12

4GF = 60

GF = 15

To find FE:

AG is to AB as FE is to CD

AG/AB = FE/CD

20/16 = FE/8

5/4 = FE/8

4FE = 5 * 8

4FE = 40

FE = 10

what is 4018 divide by 82

Answers

the answer is of 4018 divided by 82 is 49
4018 / 82 = 49


Hope this helps

What is the coefficient of the term x7y in the expansion of (x + y)8?

Answers

The coefficient means the number before the unknown so 8(x+y) would equal 8x+8y so the coefficient would be 8 and for x7y the coefficient of x is 1 because there is nothing infront of it and the coefficient of y is 7 

joseph is spending money daily and tory is earning money daily. which function represents joseph and which represents tory? explain your reasoning.

f(x)=4x+20 g(x)=80-2x

create a table of values for both

x f(x)
0
2
5
10
11

Answers

i cannot make a table but the one with subtraction is joseph's and the one with addition is tory's

Carmen, Reuben, and Bob have a total of $133 in their wallets. Bob has 3 times what Reuben has. Carmen has $8 more than Reuben. How much does each have?

Answers

So you will want to form a few equations. The first one is:
C+R+B=133
Then you will want to form an equation for Bob:
B=3R
Then, another for Carmen
C=R+8

Knowing this information, you can plug each in, solving for R.

R+8+R+3R=133      Now Solve
5R+8=133               Subtract 8 from both sides
5R=125                   Divide 5 from both sides
R=25                       Now substitute R in for Carmen and Bob equations.

R=25                        Reuben has $25
C=8+25                    Add
C=33                        Carmen has $33
B=3(25)                    Multiply
B=75                        Bob has $75

Check answer:

25+33+75=133
133=133

I hope this helps!

Mary and her dad shared one dozen brownies. 2/6 of them have nuts , which dad doesn't eat. How many brownies did dad not eat because they had nuts?

Answers

1/3 of the brownies.
He doesn’t eat 4 of them
Since one dozen is 12, you can multiple 2/6 by 2 to get 4/12 so 4 out of 12 is what he doesn’t eat

What is the value of p? 0.6441−(−0.29)=p

Answers

the value of P= 0.9341

Answer: p = 0.9341

Have a good day!

The Sharks have played 5 basketball games this season. Their scores are 65, 63, 67, 60, and 65. If they only score 30 points in their next game, what will happen to their MEDIAN score?

Answers

the median of the scores now is:

60 , 63 , 65 , 65 ,67

Median = 65

if the score 30, the median would be

30, 60 , 63 , 65 , 65 ,67

Median: 63 +65 = 128/2 = 64

The Median drops by 1

In their first five games their median would be 67 because it is the middle number. But if they score 30 points then you would have to add 67+60 and get 127. Then you divide 127 by 2 and get 63.5. The median would be changed to 63.5.

Jenna read 25 pages of a book in 30 minutes at the same rate how many pages can she read in 3 hours

Answers

• Convert 3 hours into minutes: 3 x 60(minutes in an hour) = 180 minutes
• Divide to see how many times 30 minutes goes into 180: 180 ÷ 30 = 6
• Multiply: 25 x 6 = 150 

So, Jenna can read 150 pages of a book in 3 hours. Hope this helps! :D

~PutarPotato

Please, please help!

Two straight lengths of wire are placed on the ground forming vertical angels if the measure of one of the angles formed is 72 degrees, what are the measures of the other three angles? Explain your answer.

Answers

They need to add to 180 degrees

108 * 72 = 108 degrees

solve for x. please show work

Answers

Those 2 angles makes up corresponding angles in parallel lines. Which means, both two angles equal to each other because this is a rule that exists when both of the lines are parallel to each other which is indicated with red arrows in the photo.
75 = 11x - 2
75 + 2 = 11x
77 = 11x
X = 77 / 11
X = 7
The answer is 7.

An architect makes a blueprint with a scale of one fourth inch equals 2 ft. Which will be the dimensions of the drawing of a warehouse room measuring 60 ft by 100 ft? Answer Options with 5 options A. 15 inches ''by 25 inches   '' B. 7.5 inches ''by 12.5 inches   '' C. 120 inches ''by 200 inches   '' D. 480 inches ''by 800 inches   '' E. 30 inches ''by 50 inches   ''

Answers

Facts: scale .25"=2'
room 60'×100'

Equation: 60/2=30×.25=7.5
100/2=50×.25=10.5

Answer: B

The new dimension in inches is 7.5 inches by 12.45 inches. Hence, option B is correct.

What is ratio?

The ratio notion is used in mathematics when evaluating two or more numbers. It works as a comparison tool to demonstrate how big or small a particular number is. A ratio divides two quantities in order to compare them.

As per the given information in the question,

One fourth inch equal to 2ft.

Mathematically,

1/4 inch = 2ft

0.25 inch = 2ft

The given dimensions are 60 ft by 100 ft.

Now,

0.25 inch = 2ft

x inch = 60 ft

2x = (0.25 × 60)

x = 15/2

x = 7.5 inches

Then,

0.25 inch = 2ft

y inch = 100 ft

2y = 100 × 0.25

y = 25/2

y = 12.45 inches

To know more about Ratios:

https://brainly.com/question/13419413

#SPJ2

An angle is 6 more than five times its supplement. Whats the measure of the largest angle?

Answers

Complementary angles: two angles that add to 90°
Supplementary angles: two angles that add to 180° (x)

angle "y" : y= 5x+6
180= (5x+6) + x
180=6x+ 6
174=6x
x=29
180- 29= 151


Answer: 151°

A piece of carpet is 8 feet wide and 12 feet long. The carpet needs to be reduced by a scale factor so that the reduced carpet is 2 feet wide. What is the area of the reduced carpet

Answers

6 feet because 8 / 12 reduces to 2 / 3 and you multiply 2 times 3
Hi there.

So, we've got the dimensions. 

l = 12, w = 8

We know that the width has been divided by 4. That means we also divide the length by 4. This gives us the new dimensions of:

l = 3, w = 2

A = lw 

3 · 2 = 6 ft²

Cheers~


25% of all the seats in the auditorium is 37 shares the total number of seats in the auditorium is

Answers

The number of seats in the first row is 18;
The number of seats in the second row is 18+2=20;
The number of seats in the third row is 18+2*2=22;
The number of seats in the fourth row is 18+3*2=24;
...
The number of seats in the nth row is 18+(n-1)*2.

Notice that if we knew the total number of rows we would be able to sum the number of seats in each row and get the total number of seats.

(1) The number of rows of seats in the auditorium is 27. Sufficient.
(2) The number of seats in the last row is 70 --> 18+(n-1)*2=70, where n is the number of rows. We can get n. Sufficient.

Answer: D. 

according to the law of conservation of energy, when a car uses 10,000J chemical energy from gasoline, how much energy will be transformed into sound,heat,and mechanical energy.

Answers

According to the Law of Conservation, 10,000 J of energy will be released and transformed into sound, heat, and mechanical energy. This is true because energy cannot be destroyed or created; it just transforms into some other type of energy.

Hope this helps!

Diana's painting statue she has 7/8 of a gallon of paint remaining each student requires 1/16 of a gallon of paint how many statues can she paint

Answers

Easy, first turn the factions into deciamls, then so 1.16-7.8=6.64. So, 6.64

A baker uses 30 grams of sea salt for each batch of bread. Sea salt comes in a 800 gram package. Which size package shoul the bake by so none is lef over?

Answers

a 2 liter bottle
because I just need a crown

The sun produces 3.8x10^27 joules of energy per second. How much energy is produced in a year? (Note: a year is approximately 31,000,000 seconds.) Put it in scientific form.

Answers

If you're talking about the 'scientific notation', the answer would be (3.800000000000000000000000000, 26 zeroes.) 

Answer: About [tex]\approx1.178\times10^{35}[/tex]

Step-by-step explanation:

Given : The sun produces[tex]3.8\times10^27[/tex] joules of energy per second.

It is also given that a year is approximately 31,000,000 seconds.

In scientific notation , it can be written as [tex]3.1\times10^7[/tex]

Then , the amount of energy is produced in a year will be :-

[tex]3.8\times10^{27}\times3.1\times\times10^7\\\\=3.8\times3.1\times10^{27}\times10^7\\\\=11.78\times10^{27+7}\\\\=11.78\times10^{34}=1.178\times10^{35}[/tex]

Hence,  the amount of energy is produced in a year  [tex]\approx1.178\times10^{35}[/tex]

How do you write 5.8 as a percentage

Answers

Multiply 5.8 by 100 to convert to percent:

5.8 × 100 = 580 %
580%, hope this helps!

What is the value of 48x +35. When x=2

Answers

48x + 35
x = 2
plug in 2 for x
48(2) + 35
multiply 2 and 48 together
48 x 2 = 96
add the product (96) with 35
96 + 35 = 131
answer is 131


131 is your answer

hope this helps
48x + 35 = ?
48 x 2 + 35 
96 + 35 =
131
I hope this helps
Please make me brainliest

What is 2 (1/3) — -3 (2/3) = ?

Answers

2 (1/3) - -3 (2/3) = 6


I hope this helped you! c:

Let a and b stand for two different rational numbers. If |a| > |b| then what else must be true?

Answers

a is farther from 0 then b is

Denise provides water for the runners at her schools 10K road race. She has a container that holds 678 ounces of water. How many 8-ounce cups can she fill with water?__________cups

Answers

divide total ounces by the amount each cup can hold

678 / 8 = 84.75

 so they can fill 84 cups

678 oz/ 8 = # of cups she can fill

678/8 = 84.75 

She can fill 84 cups 

hope this helps

Doug dives from a platform that is 5 meters above water. His dive takes him 2.6 meters below the surface of the water. How far does Doug's dive take him?

Answers

The total distance Doug dives from the platform to the under the water is  7.6 meters.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, Doug dives from a platform that is 5 meters above the water.

His dive takes him 2.6 meters below the surface of the water.

∴ To find the total distance Doug dived we have to sum the height of the platform above water and the distance which he dived below the water,

= (5 + 2.6) meters.

= 7.6 meters.

learn more about numerical expression here :

https://brainly.com/question/14642484

#SPJ5

create a slope that will be parallel to the slope provided which is 5/9 what is the parallel slope?

Answers

parallel lines have the same slope so 5/9 would be the answer 

Answer:

The parallel slope would be 5/9

Step-by-step explanation:

Parallel lines have the same slope. So, if the original line had a slope of 5/9, the new line would also have that slope.

What is the median and mode

Answers

Median is the middle number

60, 60, 65, 70, 70, 85, 90

70 is your median

mode is the number(s) that show up the most
60 and 70 is your mode, since they show up twice (one more than the others)

Range is largest number minus the smallest
90 - 60 = 30, 30 is your range

Mean is all the numbers added together divided by the number of numbers there are 
60 + 90 + 65 + 70 + 70 + 85 + 60 = 500
500/7 = 71.42
Mean = 71.42

hope this helps

Quadrilateral ACEG≅ Quadrilateral MNPR

Which statement is true?

Answers

Line CE is congruent to line NP is the true statement.

How do I combine like terms? For example one problem is 32y + 5y = please explain.

Answers

Step 1: Combine the coefficients. 32y + 5y are coefficients. (means have the same letter basically)
SO 32y + 5y= 37y
You can't combine oranges with apples, just oranges with oranges and apples with apples. Think about it that way.

In this specific problem, the only thing you need to do is add those numbers together as they are like terms (both have y), you'd get 37y.

With a problem like 2 + 5x + 3 + x, you'd have to identify which are like terms and which aren't. The x's go together, and 2 and 3 go together. The result would be 5 + 6x, since you can't combine x and 5.

Hope I helped! :)

The movie theater has 176 seats there are 9 roles of 18 sets plus and additional section of handcapped accessible seats

Answers

Final answer:

The question is asking about the number of seats in a movie theater with 9 rows of 18 seats each and an additional section of handicapped accessible seats. The total number of seats can be found by multiplying the number of seats in each row (18) by the number of rows (9) and adding the number of handicapped accessible seats.

Explanation:

The subject of this question is Mathematics. The question is asking about the number of seats in a movie theater, given that there are 9 rows of 18 seats each and an additional section of handicapped accessible seats.

To find the total number of seats in the theater, you can multiply the number of seats in each row (18) by the number of rows (9) and then add the number of handicapped accessible seats.

So the total number of seats in the theater is 9 rows x 18 seats/row + additional handicapped accessible seats.

Other Questions
How long does it take for a full term newborn to get over respiratory distress syndrome? A researcher calls you stating that he plans to submit a proposal to the nih for a human subjects research study. he wants to know at what point he and his study team must submit coi disclosures to comply with the phs regulation. The concept of comparative advantage makes the assumption that everyone will be better offQuestion 20 options:producing enough of a specific final good to export.producing the products they produce relatively best.producing enough of a good to consume domestically with enough to export.producing only products they can produce with greater output than any other country.Save Capitalization errors usually are caused by accidental use of the ________ key. Shade all the elements for which the neutral atom has a valence electron configuration of ns2np6 , where n stands for an integer. Becky created a graph to represent her distance away from home one afternoon. She left home and ran to the park, met some friends and stayed at the park, and then walked back home using the same route. Which graph could Becky have created? Which is the most proper order of most simple to most complex? For a class project, monroe is asked to identify why there has been a decrease in the number of deaths among children in recent decades. his research discovered that all of these factors were related to a lower death rate among children except _____. Let x denote the distance (m) that an animal moves from its birth site to the first territorial vacancy it encounters. suppose that for banner-tailed kangaroo rats, x has an exponential distribution with parameter = 0.01382. (a) what is the probability that the distance is at most 100 m? at most 200 m? between 100 and 200 m? (round your answers to four decimal places.) Which best describes the dimensions of a line? What kind of person did the kidnappers target? Why do you think that might be? Professor oger must choose between an extra writing assignment and an extra reading assignment for the upcoming spring break. for the writing assignment, there are two essay topics to choose from and three different mandatory lengths (30 pages, 35 pages, or 40 pages). the reading topic would consist of one scholarly biography combined with one volume of essays. there are five biographies and three volumes of essays to choose from. how many choices does she have? hint [see example 2.] What are similarities and differences of the cat dissection specimen brachial plexus and the human brachial plexus? Which of the following is a result of gravity in relation to moving tectonic plates?A- ridge push and slab pool B- earth's internal heatingC- earth's magnetic field reversesD- circulating material in the mantle Can yall plz help me ignore the writing part on the side of it plz show me the steps or tell me I need work shown please Q: x^2+3x-28 ________ x^2-7x+12A: x+7 ___ x-3I just need work shown What is the purpose of clarifying butter? A. To make the butter lower in fat B. To give the butter a thicker consistency C. To remove its milk solids and water Students' socioeconomic status (SES) reflects parental level of education, employment, and assets, and is a big factor in their educational opportunity and success. What is one nonfinancial boost that parents can provide a student planning to attend college? Tasha purchased a new tablet. She has several questions about how to connect to the internet, download apps, install software, and sync her other devices.Which type of resource would be best, and why? A) Bulletin board; shows other user's comments B) FAQ; answers questions about common issues C) Manual; provides all information related to the device D) Tutorial; explains each stage of the process By graphing the system of constraints, find the values of x and y that maximize the objective function.2 Steam Workshop Downloader