Mathematics Middle School

Does the equation y = 4.2x represent a proportional relationship? Choose the correct response.

A. Yes. The constant of proportionality is 4.2.
B. Yes. The equation is linear.
C. No. The equation is linear.
D. No. There is a rate of change of 4.2.

Answers

Answer 1
i agree with the answer the guy saif
Answer 2

Answer:

A .The constant of proportionality is 4.2

Step-by-step explanation:

The reason its a is because the rate of increase is always going to be be multiplied by 4.2 to stay increasing on a graph.  So the constant change is always going to have to do something with 4.2

Related Questions

This morning, Rita's car had 18.12 gallons of fuel. Now, 4.7 gallons are left. How much fuel did Rita use?

Answers

13.42 is left for Rita to use

Giving brainliest!!!!!!!

Answers

I believe the correct answer is the last option D.

Explanation:

The volume is 2 1/4 because 1 1/2 times 1 1/2 times 1 = 2 1/4
The instructions then say that there is 8 half unit cubes for every one unit cube so you multiply 2 1/4 by 8 to get 18

I hope this helps :))

Answer:

A

Step-by-step explanation:

Finding Circumference

Answers

Answer:

3

Step-by-step explanation:

[tex]16 \times 2 \times 3.14 = 100.48[/tex]

Answer:

100.48

Step-by-step explanation:

the formula for circumference is C = 2 (pi) r

2(3.14)(16)=100.48

number 9 -_- like what is this

Answers

Answer:

Place the paranthases around 5-2

Step-by-step explanation:

Honestly bro I wish I could help you but I hope someone comes around and gives you a hand. Good luck!

Which equation has a constant of proportionality equal to 7?
A. 4y = 28x
B. 7y = 28x
C. 28y = 4x
D. 28y = 7x

Answers

A is correct.

Reasoning: 4 x 7 = 28


good luck!

The solution is Option A.

The equation which has a constant of proportionality k = 7 is 4y = 28x

What is Proportion?

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the equation be represented as A

Now , the value of A is

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

Now , the equation is

4y = 28x

On simplifying the equation , we get

Divide by 4 on both sides of the equation , we get

y = 28x/4

y = 7x

y = 7x is of the form y = kx where the value of k is 7

Therefore,  the value of k is 7

Hence , the value of proportionality constant is 7

To learn more about proportion click :

https://brainly.com/question/7096655

#SPJ2

!!!(URGENT)!!! What is the surface area of this figure

Answers

Answer:

36 inches

Step-by-step explanation:

if you unfold the triangular prism and find the area of each individual shape, all you have to do is add them up:

Area Of Rectangle = WL

Area Of Triangle = 1/2(HB)

5x2=10

4x2=8

3x2=6

(4x3)1/2=6x2=12

10+8=18+6=24+12=36

I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would appreciate it!

Answers

Heyy It's me again! I hope I can help you with this question too!

Answer:

Im pretty sure it's like 5 or 6 ft

Step-by-step explanation:

sry if its not right

Answer: 4.5 ft

Step-by-step explanation:

21-16.5=4.5

brainliest please? ^^

may someone please help me understand something in class? its theoretical and experimental probability basically just probability in a whole and I can’t understand. I don’t need the definition I just want someone to make me understand in a simple way like a tutor, but anyways please help me understand this. Examples would work, anything. Just help me understand. Thanks anyways.

Answers

Experimental probability is the results of an experiment, let's say for the sake of an example marbles in a bag. Experimental probability would be drawing marbles out of the bag and recording the results. Theoretical probability is calculating the probability of it happening, not actually going out and experimenting.

hope this helped.

[tex]\sqrt{225}[/tex]

bAD ANSWERS NO PLS :)

Answers

Answer:

15

Step-by-step explanation:

sqr root 225 = 15

15. you can also ask siri if you have an iphone!

please just do number 8

Answers

i think it’s 14/5 or 2.8 :(

e

Step-by-step explanation:

I have a triangle: Angle A = 3x +28; Angle B = 5x +52; Angle C = 2x - 10: Solve for X

Answers

I have no clue if I even did this right but here’s my work. I don’t wanna get it wrong for you!
Answer: x=11


Explanation: The anglers in a triangle must all add to 180.

Therefore, we can use the equation 180=3x+28+5x+52+2x-10

Combing like terms gives us 180=10x+70

Solving for x gives us 11.

To check our work, we can plug in 11 for x.

3(11)+28+5(11)+52+2(11)-10=180.

Is this table proportional or non proportional , How do you know?

Help
the best answer will get brainly

Answers

Ez
This is non-proportional
There are 3 ways to figure out if a table is proportional or not
The one i used in which if u make fractions like 2/24. They should be equal to another fraction taken from your table
2/24 simplified is 1/12 while 8/36 is 2/9.
So


NON-PROPOTIONAL
non-porpotional because the numbers don’t match

I NEED HELP ASAP Joe is purchasing a new cell phone plan and is trying to decide between two different options.
Plan #1:
$20 per month base fee
$0.10 per minute
Plan #2:
$10 per month base fee
$0.15 per minute
a. Last month, Joe spent 160 minutes talking on the phone. If he expects to talk this much next month, which plan should he go with?

b. Joe decided to go with Plan #1. If his total bill for the next month was $25.40, how many minutes did he spend talking on the phone?

Answers

Answer:

A.

Plan 2:

2 = 34

B.

54

Answer:A- plan A=34

2=34

Step-by-step explanation:

B=54    hope it helped have a good day!

the question is in the photo :)

Answers

jaurbsowhdudowhxodbs
149.85 for the white tee, price stays the same on the second, 359.96 on the 3rd

A manufacturer of breakfast cereals is considering the following two designs for cereal boxes.


The manufacturer wants to pick the package that will use the least cardboard packaging for a given volume of cereal.

Calculate the surface area and volume of each cereal box. Which one should the manufacturer use?

The manufacturer should use Box _______.

Answers

Answer:

Box A

Step-by-step explanation:

(72x2)+(18x2)+(36x2)=252

Lamont purchased a sweater that was on sale for 25% off.
Which expression represents the amount that Lamont paid for the sweater if x represents the original price of the sweater?

Answers

y= x*0.025
hope this helps!!
The correct answer would be y=0.75x because 0.25x is how much money she saved while 0.75x is how much she still had to pay for the sweater

What is the rate of change for the linear relationship modeled in the table? (4 points)

x y
−1 10
1 9
3 8
5 7
a
negative one over two

b
0

c
one over two

d
2

Answers

Almost sure the answer is A

Answer:

The answer is A -1/2

Step-by-step explanation:

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

is 0.35 closer to 0, 0.5, or 1?

Answers

Answer:

0.5

Step-by-step explanation:

0.35 is 0.15 away from 0.5

0.35 is 0.35 away from 0

0.35 is 0.65 away from 1

Two linear functions are represented in different formats.

Function 1:

x y
0 −2
2 0
3 1
5 3
Function 2:

Graph of a line passing through the point begin ordered pair negative 2 comma 0 end ordered pair and the point begin ordered pair 0 comma 4 end ordered pair.

Which statements are true?

Select each correct answer.


Function 1 has a greater rate of change than function 2.

Function 2 has a greater rate of change than function 1.

Function 1 has a greater y-intercept than function 2.

Function 2 has a greater y-intercept than function 1.

Answers

The statements that are true are;

Function 2 has a greater rate of change than function 1.

Function 2 has a greater y-intercept than function 1.

Step-by-step explanation:

Given that function 1 has the table;

x  y

0 -2

2  0

3   1

5   3

Finding the slope of the linear function gives the rate of change of the function. In this case,

m=Δy/Δx

m=3-1/5-3 = 2/2 =1

The equation of the linear function is given as;

m=Δy/Δx

y-3/x-5= 1

y-3=x-5

y=x-5+3

y=x-2

y-intercept is -2

In function 2, the line passes through points (-2,0) and (0,4)

Finding the slope of the line,

m₁=Δy/Δx

m₁=4-0/0--2

m₁= 4/2 =2

Rate of change is 2

Finding the equation of the line

y-4/x-0 = 2

y-4=2(x-0)

y-4 =2x

y=2x+4

The y-intercept is 4

The statements that are true are;

Function 2 has a greater rate of change than function 1.

Function 2 has a greater y-intercept than function 1.

The Buffaloes won 57.1% of their 140 baseball games this year. How many games did they win?
A) 60
B) 70
C) 80
D) 90

Answers

Answer:

C - 80 games

Step-by-step explanation:

140 * 0.571 ≈ 80

C is the correct solution A, B, and D are incorrect

Answer the questions and provide an explanation (if needed).

Answers

Answer:

1. 0 2. 130 3. -9.9

Step-by-step explanation:

Pls help its not that hard, im in 7th grade

Answers

i think it's 20 but i'm not that sure

Answer:

7/5

Step-by-step explanation:

To determine the proportionality you'll have to multiply the answers by x to get y. In this case 7/5 is the answer.

Calculations

0 x 7/5 = 0

20 x 7/5 = 28

40 x 7/5 = 56

I WILL GIVE YOU BRAINLIEST IF YOU HELP ME WITH THIS MATH WORKSHEET (1/2)

Answers

Answer:

Step-by-step explanation:

1) corresponding angles

2)alternate interior angles

3)alternate interior angles

4)corresponding angles

2x-7=123

2x=130

x=65

5)corresponding angles

6x-11=5x

6) alternate interiot

40=14-2x

26=-2x

-13=x

Yes^that answer is correct ^

create a table of values for Jacksons situation described above
(Non proportional relationships)​

Answers

Answer:

5)0

6)15

7)30

8)45

9)60

10)75

Write an equation: Six more than five times a number is negative twenty

Answers

Answer:

Let n = the number

5x + 6 = 2x - 9

3x = -15

x = -5

Step-by-step explanation:

6+5•x=-20 or try 6+5x=-20

Choose Yes or No to tell if the fraction 3/5 will make each equation true.
7/20 + 3/5 = 19/20 (yes/no)
3/5 + 3/10 = 3/15 (yes/no)
1/2 + 2/3 = 3/5 (yes/no)
1/10 + 1/2 = 3/5 (yes/no)

Answers

yes
no
no
yes
i hope it helped.
Correct answers:
Yes
No
No
Yes

Can someone please help me

Answers

7pounds 2pounds 7-2= 5

please help ill give brainliest

Answers

Answer:

26.25

Step-by-step explanation:

I'm pretty sure this is the correct answer.

What is 40% of 75?

Use the ratio table to solve the percent problem.

Part Whole
? 75
40 100

Answers

Answer:

30

Step-by-step explanation:

40% of 75 is just 0.4 times 75.

0.4 x 75 = 30

Let me know if this helps!

Answer:

30

Step-by-step explanation:

Good Luck

Other Questions
Please help!!!! Compare/Contrast specific event of haitian revolution and the mexican revolution? Two streets form an intersection. C and D are supplementaryangles. If the measure of C is 140 and the measure of D istwo times the value of x, what is the value of x? What is the slope of the line that passes through the points (-2,-5) and (-3,-6) write your answer in simplest form Macroeconomics is the branch of economics that focuses on:A. comparing the lifestyles of poor and wealthy citizens.B. economic principles affecting entire countries.C. helping people find jobs when they're unemployed.D. financial problems affecting individual families. A family pays a biotechnology company to clone their cat because it is particularly snuggly. The scientists isolate the DNA from the original pet and begin the cloning process. When the family receives the clone, should they expect differences in looks and behavior and why? Write complete sentences in the present tense using the parts listed.1. Yo / nunca / mirar / la televisin.2. Mis amigos / querer / ir al teatro.3. Nosotros / almorzar / al medioda.4. Tu / leer / muchos libros tristes.5. La camisa / costar / 20 dlares. Find the geometric mean between 4 and 20. The problem with your knees being over your toes is _______.Question 3 options:It brings your rear end too far forward.It brings your center of gravity too far forward (your heals come up)It causes you to not be able to move as quickly or efficientlyAll of the above Write an equation in point-slope form of the line that passes through the two givenpoints. (4,7) and (5, 1) WILL BRAINLIESTCunto dinero tiene Carlos para gastar?$100$110$150$10 How can you tell that the following number is a rational number?0.251 A. It is a rational number because the decimal terminates B. It is a rational number because there is a value of 0 in the ones place C. It is a rational number because the sum of the digits is less than 10 D. It is a rational number because it is not a repeating decimal People causing a change in society's view about the need for education iscalledA. societal stagnationB. sociological imaginationC. sociable interactingO D. social engineering A shoe store uses a 50% markup for all of the shoes it sells. What would be the selling price of a pair of shoes that has a wholesale cost of $59? please help me, will mark brainliest what is the phenomena of cells? please help me. i am so confused please The sum of three consecutive odd integers is 105.What is the first integer? David and Lucy have sweets in the ratio 4:7. Lucy has27 more sweets. How many does David have? The key to good reading is? A) speedB) being an analytic readerusing a highlighterC) having the right tools of the tradeD) understanding the material hellp? Spanish work