Mathematics Middle School

Find the linear equations written in standard form. Select all that apply.
x + y = -1
-3.x = y
x + 4y = 0
y = 5x - 2
x = 3 -0.17
8x – 3y = 20

Answers

Answer 1

Answer:

Step-by-step explanation:

A linear equation in "standard form" looks like Ax + By + C = 0,  or

Ax + By = D

x + y = -1 :  is in standard form:  A = 1, B = 1 and D = -1

-3.x = y :  NOT in standard form

x + 4y = 0   is in standard form

y = 5x - 2   NOT in standard form

x = 3 -0.17   NOT

8x – 3y = 20  is in standard form

Answer 2

Answer:

A. x + y = -1

C. x +4y = 0

F. 8x - 3y = 20

Step-by-step explanation:

Edge 2023

Related Questions

Which inequality is true for all real numbers? Check all that apply.
a-b ac 2 bc
If a 2 b, then a +c2b+c
If c>d, then a-c If a

Answers

Answer:

c & d

Step-by-step explanation:

Answer:

C,D

Step-by-step explanation:

−46=21+3m heellllllllllllppppppppppp

Answers

-46 = 21 + 2m

Subtract 21 from both sides

-67 = 3m

Divide both sides by 3

M = -22 1/3

Answer:

22 1/3

Step-by-step explanation:

PLEASE ASAP HURRY!!!

PLEASE ASAP HURRY!!!

Answers

Answer:

Strawberry= 3
Watermelon=3
Coconut=9
Orange=5

Step-by-step explanation:

Quite easy, you can use substitution

First look at the simplest row that can be solved by itself

row 2:

2strawberries +4 = 10

2 strawberries= 6

1 strawberry = 3

Row 3: Strawberry(3)+ orange=8

1 orange= 5

Rpw 4: 14= 1coconut +orange(5)

1 coconut= 9

Row 1: Coconut(9)+ watermelon+ coconut(9)= 21

2 coconut(18)= 21

1 watermelon = 3



Strawberry=3

Watermelon=3

Coconut=9

Orange=5

(CORRECT ANSWER GETS BRAINLIEST)
The chart below shows the age of the volunteers for the local pet hospital. When combined which two age groups would be almost equivalent to the 40-52 age group?(A.0-13 and 27-39B). (B.0-13 and 53-65) (C.40-52 and 53-65) (D.53-65 and 14-26)

(CORRECT ANSWER GETS BRAINLIEST)The chart below shows the age of the volunteers for the local pet hospital.

Answers

Answer: The answer is D

Step-by-step explanation:

Since there are 20 people in the 53-65 range, we can add that to the number of people in the 14-26 range which is 60.

The sum of both of those then gives us 80 which is the same amount as the 40-52group

Answer:

40-52 & 53-65

Step-by-step explanation:

we know our age groups mean that there can be more than 120 in number as the 27-39 age group can only be 2 groups. Which conceals the fact that we need it two

40-52 is an age group which has 80 in number and below it the

“  14-28 age group “

60 in age group.

And60+80 is more than the number 27-39 ager group by 20 in number.

Or by making it c

C.

What is the value of x?

What is the value of x?

Answers

Answer:

x = 63

Step-by-step explanation:

180-27-90 = 63.

Answer:

x = 63°

Step-by-step explanation:

So triangles always equal 180°

We know 2 sides already which are 90 and 27

90 + 27 = 117

180 - 117 = 63

or

90 + 27 + x = 180

117 + x = 180

x = 63

I need help, please quickly

I need help, please quickly

Answers

Answer: The ratio is 18:3

Step-by-step explanation:

Answer:  6 to 1

Step-by-step explanation:

A ratio refers to a fraction. In this case the question asks how many players to coaches there are.

The word "to" means that is where the fraction bar goes.

Players/Coaches

There are 18 players and 3 coaches.

18/3

18 can be divided by 3, 6 times so the fraction can be simplified to

6/1 meaning there are 6 players for every coach.

It will mean a whooole lot for me if you answer

It will mean a whooole lot for me if you answer
It will mean a whooole lot for me if you answer

Answers

Answer:

1 ) 180 - 71 = 109

2) 5x +x = 180 ;  6x = 180 ; x = 180/6 = 30

3) 90

4) x + 6x+8 + x+12 =  180 ;  8x + 20 = 180 ;  8x = 160/8= 30

5)  180 -110 = 70

6) m = 180- 119 = 61

7) 90

8) 11y - 36 = 63 ;  y = 99/11 = 9

~~~~~~~~Next page~~~~~~~~~~

(Q7) 180

(Q8) 2x+x = 3x = 90 ;  x = 90/3 = 30

(Q15) 157

(Q16) 5x + 4 + (x-2) + (3x+7) = 180

       9x +9 = 180 ;   x = 171 / 9 = 19

I hope im right!!

Answer:

That is hard.

Step-by-step explanation:

Answer this please. x3+y3+z3=k

Answers

3xyz is the answer im pretty sure

CAn y’all PLEASEEEEE help me?

CAn yall PLEASEEEEE help me?

Answers

Hey babe!

I think the answer is C.

Reasoning: Amanda is cutting off 1 3/4 feet & 4. Which is meaning subtraction.

Do not send me links or pdfs pls

Determine whether each sample is unbiased with complete sentences.

The population is every female living in the United State s.

A. Sample: Every female who responds to a survey sent out in the mail is included.


B. Sample: Every female is listed alphabetically and every 1,000th female is included.

C. Sample: Every female is put into a group based on age. Ten females from every age group are randomly chosen.

Answers

Answer: waited 2 years for this

Step-by-step explanation:

pleaase help me out with this question thankss!!

pleaase help me out with this question thankss!!

Answers

Answer:

A. 61 degrees

Step-by-step explanation:

Its A umm yeah your welcomeee

Which property is shown by -6 + 0 = -6? A. Commutative Property of Addition B. Identity Property of Addition C. Distributive Property D. Associative Property of Addition

Answers

Answer:

C

Step-by-step explanation:

It is c because you are adding. the 6 and o.

Answer:

Would be C.

Step-by-step explanation:

Just adding the 6 and the 0 basically.

please do statement reasoning for the image!

please do statement reasoning for the image!

Answers

Answer:

Ac=cd & ab=bd +common side so abc=dbc

same for ehf and ghf but difference in common right angle.

-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)

Answers

Answer:

Option #4

Step-by-step explanation:

Expand option #4

=-3(1-2x)

=-3 -2x*-3

=-3+6x which is what your original equation was.

becoz it is a multiple choice, we can go by elimination, hence when we expand #4, we will get -3+6x

PLEASE HELP APAP, WILL MARK BRAINLIEST WHEN POSSIBLE! The length of a rectangle is shown below:

On a coordinate grid from negative 6 to positive 6 on the x-axis and on the y-axis, two points A and B are shown. The point A is on ordered pair negative 4, 5, and the point B is on ordered pair 5, 5.

If the area of the rectangle to be drawn is 90 square units, where should points C and D be located, if they lie vertically below A and B, to make this rectangle?

1. C(4, −5), D(−3, −5)
2. C(5, −4), D(−4, −4)
3. C(5, −5), D(−4, −5)
4. C(−5, 5), D(−5, −4)

Answers

im pretty sure the correct answer is the fourth one
i think its the Fourth answer

A memory card at Best Buy has a sticker price of $129.20.


If Best Buy has a 7.5% sales tax, what is the total cost (including tax) of the memory card?

Answers

It’s $138.89 including sales tax
138.89 hope this helped

Refer to the equation 2x − 6y = 12.
step 1 Create a table of values for at least 4 points. Show your work.
step 2 Use the table of values to graph the line.

Refer to the equation 2x 6y = 12.step 1 Create a table of values for at least 4 points. Show your work.step

Answers

Answer:

As you can see from the table, for values of y=-2 for x=0, y=-1 for x=3, y==-3 for x=-3, and y=0 for x=6.

Plot these points on the coordinate plane and connect them with straight lines.

The points plotted below are on the graph of a polynomial. Which of the following x-values best approximate roots of the polynomial?​

The points plotted below are on the graph of a polynomial. Which of the followingx-valuesbest approximate

Answers

The roots of a polynomial are the x-axis intercepts where y=0.

The polynomial is a cubic as the graph has the characteristic shape and crosses the x-axis 3 times.

Since the scale is linear, each dash represents an increase of 1.

If you connect the dots you should get the curve crossing at x= -1.1
x= 2.4
x= 6.0

If the relationships below are given in the form (input, output), which pairing always describes a function? (a person’s age in years, that same person’s height in inches) (a person’s weight in pounds, that same person’s height in inches) (a person’s height in centimeters, that same person’s height in inches) (a person’s telephone number, that same person’s height in inches)

Answers

Answer:

A function is a mathematical relation in which each input (domain value) is associated with exactly one output (range value). In other words, for a relation to be a function, each input can have only one corresponding output. Let's analyze the given pairings:

(a person’s age in years, that same person’s height in inches) - This can be a function because one person's age in years should correspond to a single height in inches.

(a person’s weight in pounds, that same person’s height in inches) - This can also be a function because one person's weight in pounds should correspond to a single height in inches.

(a person’s height in centimeters, that same person’s height in inches) - This can be a function because one person's height in centimeters should correspond to a single height in inches.

(a person’s telephone number, that same person’s height in inches) - This may not necessarily be a function. It's possible for two different people to have the same height in inches but different telephone numbers.

So, the pairings that always describe a function are:

(a person’s age in years, that same person’s height in inches)

(a person’s weight in pounds, that same person’s height in inches)

(a person’s height in centimeters, that same person’s height in inches)

These three pairings meet the criteria of a function, where each input corresponds to a unique output.

The pairing that always describes a function is option C. (a person’s height in centimeters, that same person’s height in inches)

How did we arrive at this assertion?

A pairing describes a function when each unique input (domain element) is associated with exactly one unique output (range element). In other words, there should be no ambiguity or multiple outputs for a single input. Let's analyze the given pairings:

1. (a person’s age in years, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same age, but they might have different heights. So, there can be multiple outputs for the same input (age).

2. (a person’s weight in pounds, that same person’s height in inches): Similar to the first pairing, this may not always describe a function because different people can have the same weight but different heights.

3. (a person’s height in centimeters, that same person’s height in inches): This pairing describes a function because for each unique height in centimeters, there is only one corresponding height in inches.

4. (a person’s telephone number, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same telephone number, but they might have different heights. So, there can be multiple outputs for the same input (telephone number).

So, the pairing that always describes a function is: (a person’s height in centimeters, that same person’s height in inches)

learn more about function describing pairs: https://brainly.com/question/31919824

#SPJ1

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
The equation of the line in this graph is y = _ x +_

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction

Answers

Answer:

y=-2x+3

Step-by-step explanation:

Y=-2x+3






The line passes through the X axis into -2, but it also passes through the y axis which is 3.

can someone plz help meh im cunfusled on this one too?

You are biking at a speed of 18 miles per hour. You are 3 miles behind your friend, who is biking at a speed of 12 miles per hour. Write and solve an equation to find the amount of time it takes for you to catch up to your friend.

Answers

Answer:

half hour

Step-by-step explanation:

can someone plz help meh im cunfusled on this one too? You are biking at a speed of 18 miles per hour.
Half an hour
Because I’m right

Which list orders the numbers from least to greatest?

Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth

A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3

Answers

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth


Hope my answer helps you✌️

Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5 is the list that orders the numbers from least to greatest.

i'm so confuzzled, please help

i'm so confuzzled, please help

Answers

Step-by-step explanation:

0.5% of w is 12 is what they are asking

0.5% of w = 12. Only the first answer has the equation equal to 12, so the first part is

\(12 = 0.005 \times w\)

Now to solve it, we want to get W alone, we can do that by dividing 0.005 on both sides. Since right now it's being multiplied we must do the opposite

\(w = \frac{12}{0.005} = 2400\)

Answer:

0.5% of w is 12 is what they are asking0.5% of w = 12. Only the first answer has the equation equal to 12, so the first part isNow to solve it, we want to get W alone, we can do that by dividing 0.005 on both sides. Since right now it's being multiplied we must do the opposite

Step-by-step explanation:

About how many times larger is 8.75 x 10^(-2) than 4.35 x 10^(-4)?

Answers

Answer:

0.087065

Step-by-step explanation:

200 roughly because you just add times X and solve

SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!! I NEED THE ANSWER TODAY THIS ASSIGNMENT IS DUE TODAY

SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO

Answers

Answer:

x = 5

Step-by-step explanation:

4x + 2y + z = 24

2x - 3y - z = 2

5x + y + 2z = 21

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

Eliminate z

Add the 1st and 2nd eqn

4x + 2y + z = 24

2x - 3y - z = 2

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

6x - 1y = 26 eqn A

Multiply the 2nd eqn by 2, then add the 3rd.

4x - 6y -2z = 4

5x + y + 2z = 21

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

9x - 5y = 25 eqn B

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

Now you have 2 eqns in 2 unknowns, not 3.

Multiply eqn A by 5 and subtract eqn B.

30x - 5y = 130 eqn A times 5

9x - 5y = 25 eqn B

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

21x = 105

x = 5

Answer:

x = 5 is the answer

Step-by-step explanation:

please help first correct answer ill give brainliest the question is on the attached photo​

please help first correct answer ill give brainliest the question is on the attached photo

Answers

Answer- 22.4 and 8.1

181.44/22.4=8.1

3/5-1/3 can you help me get the answer?

Answers

Answer:

you only need to multiply, the answer is 4/15

Answer:

4/15

Step-by-step explanation:

3/5 • 3/3 - 1/3 • 5/5

3•3/15 - 5/15

3•3-5/15

4/15

I'm so slow when it comes to math. can someone try to help me
please no links

I'm so slow when it comes to math. can someone try to help me please no links

Answers

Answer:

Places where i have put bracket is what u have to fill in the box.

hope it helped :)

Step-by-step explanation:

(10²)+42²=c²

so,

100 + 1764 = c²

(1864)=c²

\(( \sqrt{1864}) = \: c\\ \\ \)

43.2 + 10

= (53.2)

The tree is about (53.2) ft.

One kilometer is 1000 meters.

Complete the tables. What is the interpretation of the constant of proportionality in each case?

The constant of proportionality tells us that:

The constant of proportionality tells us that:

What is the relationship between the two constants of proportionality?

One kilometer is 1000 meters. Complete the tables. What is the interpretation of the constant of proportionality

Answers

Answer:

only completed the table

Step-by-step explanation:

row3=0.250

row4=0.012

row5=0.001

row3=5,000

row4=20,000

row5=300

Answer:

Step-by-step explanation:

0.25km

0.012

0.001

5000

20000

300

Karen and bill collector coins Karen has x coins but Bill has eight coins fewer than three times the number of coins Karen has to write and simplify an expression for the total numbers of coins Karen and bill have.

Answers

KAREN!!!!

oop sorry for not answering question

B = 3k - 8

3k = b + 8

Now this is just system of equations, and the system would be in b, k. (-8, 0) so bill is in debt -8 coins, and Karen has 0coins, lol.
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What is the best way to verify the meanings of unknown words?. Consider thesolubility curve atright. Which gashas the greatestsolubility at 90 C?A. Substance AC. Substance D100908070Solute per 100 g of HO (g),605040ABB. Substance CD. Substance BO.30201000 10 20 30 40 50 60 70 80 90 100Temperature (C)C Solve for z. z = 36 Enter your answer in the box. z = I NEED THE CORRECT ANSWER TO THIS ASAP FOR A TEST!!!!!! The 1st Amendment protects all of the following EXCEPT for:a) Freedom of speechb) Freedom of religionc) Right to bear armsd) Right to petition the government A 0.5- mm -long piece of bone with a certain cross-sectional area shortens by 0.10 mmmm under a given compressive force. By how much does a piece of steel with the same length and cross-sectional area shorten if the same force is applied Which of the graphs of the inequality y+1 Mary invests 120000 in a savings account.the account pays 1.5% compound interest per year work out the value of her investment after 2 years What is the equation of the line that passes through the given point and is perpendicular to the given line?Point: (1,1)Line: y=1/5x+4/51. y=5x+62. y=5x+4/53. y=1/5x1/54. y=5x5/4 Which of the following would indicate that a blood sample is Rh-? (2 points)The absence of Rhesus factorThe presence of the Rhesus factorThe presence of A antigenThe absence of the A antigen Select the FALSE statement about Islamic art. Images of Muhammad dominated Islamic art The Byzantine Empire influenced the nature of Islamic art The religion of Islam forbids the use of icons in art Arabesque is a feature of Islamic art Can someone help me with this one I am really confused with how it works:-9x-x^2 many businesses believe that they should have an influential and important role in: multiple choice question. building social inequities religious practice for all employees redistributing wealth building communities As a result of fears regarding the Cold War, many Americans urged Congress to declare war on the Soviet Union. built bomb shelters in their backyards. supported Senator McCarthy well into the 1960s. voted for Harry Truman in the election of 1952. Assume the price of a bond is $3000 and has a yield of 9%. If itis resold for $5000, what is the new yield on the bond? Youmust show your work. PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!A box has a length of 15 centimeters, a width of 22 centimeters, and a height of 9 centimeters. What is the surface areaof the box?a.) 1,326 cm^2b.) 5,940 cm^2c.) 663 cm^2 y = 5x 7 3x 2y = 12 solved by substitution please show the work too so i can understand Solve: 2x + 6 + 10 = 12 A game controller that was $25 last year is $37 thisyear. What is the percent of change in the price of thegame controller? Please help im in desperate need Find the value of the expression below for h= 6. h 2 A 4 B 8 C 12 How does the use of eddieandbill impact the meaning of "in Just-"?- It shows that the boys cant focus on playing marbles anymore.- It relates that things are happening very fast that day.- It shows only that the boys are good friends.- It captures the rush and excitement of the boys' fun.