Please help! 8th grade algebra 1

Please Help! 8th Grade Algebra 1

Answers

Answer 1

Answer:

i)  y∝x  => y = kx and k = 2.5

ii) When x = 7, y is 17.5

Step-by-step explanation:

If y is directly proportional to x then according to the question

y∝x  which means y =kx where k is any constant

From the above example

8y=20x comparing it with y = kx

y =  (20/8)x

y = 2.5x

Here k = 2.5

i) y∝x  =>  y =2.5x

ii) if x=7 then y = ?

From above

y=2.5x

Put x = 7

y = 2.5 x 7

y = 17.5


Related Questions

plssssssssssssssss BHAHAHHAHAHA

Answers

Answer:

They so FINEEE

Step-by-step explanation:

But, Have a nice day lol!

OH HAHAHAHAHAH that’s awesome

Pleaaaseeee help. Ill give brianliest!

Answers

What r the options so i can get an idea

Shall we made cupcakes and now she wants to frost them she has 4 cups of frosting it takes 1/3 of a cup of frosting for each cupcake how many cupcakes can she frost . what’s the equation and how many cupcakes can Shelly frost?

Answers

4 = 1/3x

she can frost 12 cupcakes
she can frost 12 cupcakes
the equation is 1/3x=4

The formula for any geometric sequence is a n = a 1 · r n - 1 , where a n represents the value of the nth term, a 1 represents the value of the first term, r represents the common ratio, and n represents the term number. What is the formula for the geometric sequence 4, 8, 16, 32, ...?

an = 32 · 2n - 1
an = 2 · 4n - 1
an = 4 · (1/2)n - 1
an = 4 · 2n - 1

Answers

Answer:

Step-by-step explanation:instead, try making the subscripts and superscripts stand out:

                         n-1

a    =  a         * r

 n         n-1

Believe me, it's worth the extra work to do this!!

Given the sequence   -3, -6, -12, -24, you can easily see that the first term,

a         is    -3.  The common factor is 2.  Note how (-3)*2=-6, and so on.

  1

So, a       = -3 and r=2.

        1

So the formula for this geometric sequence is  

                  n-1

a     =  -3*2

  n

B bc 2 goes through everything and the same thing as 4

Which of the following values represent a meaningful difference between two populations? Select all that apply.

Answers

Answer: I got you if its not to late  the answer is 2,3

Step-by-step explanation

anything above 2 is meaningful so first you would subtract 21.9 28.1 to get  3.7 its above 2 so that's one do the same for the rest anything above 2 is your answer or right at two really hope this helps

What is the axis of symmetry for y=3x^2+x−2?
x=−6
x=−1/6
x=−2
x=3

Answers

The answer is x=1/6
Please mark as brainliest

PLEASE HELP I WILL MARK BRAINLIEST!!!!!!!!!!!!
What is a difference between eukaryotic cells and prokaryotic cells?
Group of answer choices

A) Only prokaryotic cells have cytoplasm.

B) Only eukaryotic cells have a cell membrane.

C) Only prokaryotic cells have DNA.

D) Only eukaryotic cells have membrane-bound organelles, like a nucleus.

Answers

Answer:

b

Step-by-step explanation:

Answer:

if im wrong im sorry but i believe it is c

Step-by-step explanation:

Fr can y’all help me stop taking my points

Answers

Original area should be 35 the new area I believe is 1260 and the area is multiplied by 36 but that seems off so my other guess would be the new area is 210 and it’s being multiplied by 6

4^3 is equivalent to? *

A:4 + 4 + 4

B:12

C:64

D:81


1 answer :)

Answers

Answer:

4+4+4

Step-by-step explanation:

4^3 means 4 cubed which is equal to 4 added three time

PLEASE HELP GIVING BRAINLIEST AND 100 POINTS TO WHOEVER ANSWERS ALL QUESTIONS

Answers

Answer:

1. 251.82

2. 251.82 -251.62= 0.2

3. 105,160 6 feet tall men to make it to the moon.

4. 228.8

Step-by-step explanation:

hope this helps you

have a great day :)

Apply the distributive property to write an equivalent expression to
6(h+4) in expanded form.

Answers

Answer:

6h+24

Step-by-step explanation:

Answer:

Hiya Luffyy!

6h+24

Step-by-step explanation:

Use the Distributive Property to solve the problem. [Example: 4(6+3) = 4(6)+4(3) = 24 + 12 = 36] 9(8 + 4)



(sorry for spamming these questions, its part of an assignment i HAVE to do well on to raise my horrible math grade)

Answers

please let me know if you need help on anything else.

4(6+3)=4(6)+4(3)=24+12=36.

multiply 4(6) and 4(3).

4x6=24 4x3=12

24+12=24+12=24+12=36

24+12=36

9(8+4)

72+36=108

---

hope it helps

Answer:

2x = 6

Step-by-step explanation:

Simplify the following algebraic expressions.

- 6x + 5 + 12x -6

2(x - 9) + 6(-x + 2) + 4x

3x2 + 12 + 9x - 20 + 6x2 - x

(x + 2)(x + 4) + (x + 5)(-x - 1)

1.2(x - 9) - 2.3(x + 4)

(x2y)(xy2)

(-x2y2)(xy2)

Solution

Group like terms and simplify.

- 6x + 5 + 12x -6 = (- 6x + 12x) + (5 - 6)

= 6x - 1

Expand brackets.

2(x - 9) + 6(-x + 2) + 4x = 2x - 18 - 6x + 12 + 4x

Group like terms and simplify.

= (2x - 6x + 4x) + (- 18 + 12) = - 6

Group like terms and simplify.

3x2 + 12 + 9x - 20 + 6x2 - x

= (3x2 + 6x2) + (9x - x) + (12 - 20)

= 9x2 + 8x - 8

Expand brackets.

(x + 2)(x + 4) + (x + 5)(- x - 1)

= x2 + 4x + 2x + 8 - x2 - x - 5x - 5

Group like terms.

= (x2 - x2) + (4x + 2x - x - 5x) + (8 - 5)

= 3

Expand and group.

1.2(x - 9) - 2.3(x + 4)

= 1.2x - 10.8 - 2.3x - 9.2

= -1.1x - 20

Rewrite as follows.

(x2y)(xy2) = (x2 x)(y y2)

Use rules of exponential.

= x3 y3

Rewrite expression as follows.

(-x2y2)(xy2) = -(x2 x)( y2 y2)

Use rules of exponential.

= - x3 y4

Simplify the expressions.

(a b2)(a3 b) / (a2 b3)

(21 x5) / (3 x4)

(6 x4)(4 y2) / [ (3 x2)(16 y) ]

(4x - 12) / 4

(-5x - 10) / (x + 2)

(x2 - 4x - 12) / (x2 - 2 x - 24)

Solution

Use rules of exponential to simplify the numerator first.

(a b2)(a3 b) / (a2 b3) = (a4 b3) / (a2 b3)

Rewrite as follows.

(a4 / a2) (b3 / b3)

Use rule of quotient of exponentials to simplify.

= a2

Rewrite as follows.

(21 x5) / (3 x4) = (21 / 3)(x5 / x4)

Simplify.

= 7 x

(6 x4)(4 y2) / [ (3 x2)(16 y) ]

Multiply terms in numerator and denominator and simplify.

(6 x4)(4 y2) / [ (3 x2)(16 y) ] = (24 x4 y2) / (48 x2 y)

Rewrite as follows.

= (24 / 48)(x4 / x2)(y2 / y)

Simplify.

= (1 / 2) x2 y

Factor 4 out in the numerator.

(4x - 12) / 4 = 4(x - 3) / 4

Simplify.

= x - 3

Factor -5 out in the numerator.

(-5x - 10) / (x + 2) = - 5 (x + 2) / (x + 2)

Simplify.

= - 5

Factor numerator and denominator as follows.

(x2 - 4x - 12) / (x2 - 2x - 24) = [(x - 6)(x + 2)] / [(x - 6)(x + 4)]

Simplify.

= (x + 2) / (x + 4) , for all x not equal to 6

Solve for x the following linear equations.

2x = 6

CAN SOMEONE PLEASE HELP ME ON THIS ESCAPE ROOM???

Answers

Holy god gud luck on escaping that (*´ー`*)
I don’t think I’ve ever took this... gl ;-;

Pldsssssss help
????

Answers

Answer:

Roberta's boat started farther from the dock, but John's boat moves more quickly.

Step-by-step explanation:

It would probably be B

PLEASE HELP WILL GIVE BRAINILEST

Answers

Answer:

[tex]\Huge\boxed{25.13ft^3}[/tex]

Step-by-step explanation:

Hello There!

It says the tree has a cone like structure

The formula for volume of a cone is

[tex]V=\pi r^2\frac{h}{3}[/tex]

where r = radius and h = height

note it says to use 3.14 for pi

so given the dimensions all we have to do is plug in the values into the formula

[tex]V=3.14*2^2*\frac{6}{3}\\2^2=4\\4*3.14=12.56\\\\\frac{6}{3} =2\\2*15.56=25.133[/tex]

Our last step is to round to the nearest foot

So we can conclude that the tree has a volume of 25.13ft³

PLEASE I WILL GIVE THANKS RATE 5 STARS GIVE BRAINLIEST AND ALSO GIVE 25 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I have to do a Hinduism poster for the teacher who does not really like me so can anybody I really don't care who give me tips on what should I put in it??????????????????

Answers

- Hindu symbols

  - This will be a great start to a Hindu themed poster as the symbols mean a lot, and you could even put a message with the symbols

- Ganesha (sacred elephant) or Hanuman (The monkey god)

  - Putting sacred animals in the poster will really bring out the theme and idea of the poster itself.

- A temple

  - Putting a temple in the poster will overall represent the theme of this poster, as Hindu's spend a lot of time in their temple's

- Murti (statue or image of the god being worshipped0

  - To top it off add a religious symbol in there

Hinduism: A major religion started in South Asia, which was developed by Vedic Religion

95% of the Hindus live in India.

Over 900 million people are considered to be Hindu.

Hindus formed over 4,000 years ago.

Find the common ratio of the geometric sequence .−12,84,−588,...

Answers

Answer: the common ratio is -7


The common ratio is -7

PLEASE PLEASE PLEASE HELP I WILL MARK BRAINLIEST!!!!!!!
What do ribosomes and the endoplasmic reticulum have in common?
Group of answer choices

A) They are both involved in building and transporting proteins.

B) They are both found in the nucleus.

C) They are found in animal cells but not in plant cells.

D) They are both involved in getting rid of waste.

Answers

Answer:

The answer is A

Step-by-step explanation:

Ribosomes, the endoplasmic reticulum, and the Golgi apparatus are all organelles. They are also all involved in the making, packaging, and shipping of proteins. Ribosomes help in the production of proteins during translation.

:)

I have a question about basic algerba so I need some helps and its a word problem sooo yeah please help I'm giving out some big points to yall who can help??

When Erik makes chocolate chip cookies at home, he typically mixes x ounces of chocolate chips into the batter. In his last batch, he decided to make the cookies extra delicious and used 30% more chocolate chips.
PICK ALL the expressions that represent how many ounces of chocolate chips Erik used in his last batch.
1. 0.3x
2. x + 0.3x
3. 1.3x
4. x + 1.3x

Answers

Answer:

2,3

Step-by-step explanation:

30% chocolate chips so x+0.3x and if u add them together it is 1.3x

Answer:

I would say it is number 2 and 3

Step-by-step explanation:

i need help please im lost on this question pleaseeee

Answers

Answer:

Step-by-step explanation:

it's the area of the circle base  times it's height

Area of a circle = pi * [tex]r^{2}[/tex]

3.14+4.5 = 14.13

14.13 * 24 = 339.12 [tex]cm^{2}[/tex]

In the following diagram \overline{DE} \parallel \overline{FG}
DE

FG
start overline, D, E, end overline, \parallel, start overline, F, G, end overline and \overline{KL} \perp \overline{FG}
KL

FG
start overline, K, L, end overline, \perp, start overline, F, G, end overline.
What is the measure of \greenD{\angle x}∠xstart color #1fab54, angle, x, end color #1fab54?
Angles are not necessarily drawn to scale. Given the following:

Answers

Answer:

20

Step-by-step explanation:

Because AB perpendiculaire on FG So m(<ABG) = 90 Because m(<GCJ) = 70So m(<ACB) = 70, vertically opposite angleIn triangle ABC m(<CAB) = 20, 180-(90+70) = 20So m(<X) = 20, (voa)

7th grade math pls help

Answers

Answer:

x=18

Step-by-step explanation:

Vertical angles mean that the angles are the same, diagonal from each other.

So, you can assume that <1=<3,

4x-14=58

Solve this as an equation

58+14=72

72/4=18

x=18

So because they are Vertical angles, they are equal! The equation would be (4x-14)=58. When you solve for that, you get x=18

I just need to know if its wider or narrower

Answers

Answer:

wider

Step-by-step explanation:

The equation is wider

Nancy wants to buy 32 notebooks to give to her classmates, each notebook cost $1.75, how much will Nancy pay for 32 notebooks?

a 50.60

b 60

c 65

d 56

Answers

Answer:

Step-by-step explanation:

32n($1.75/n)=$56

Answer D

Answer:

D

Step-by-step explanation:

1.75x32=56

−2x − 10 = 15 I'm really un smart

Answers

Answer:

x = -12.5

Step-by-step explanation:

your goal is to get x alone so

-2x - 10 = 15

(add ten to both sides)

-2x = 25

(divide -2 to both sides)

x = -12.5

remember that whatever u do to one side of the equation, you have to do to the other so they even out!

a cylinder has a height of 14 and a diameter of 28 what is its volume?

Answers

Answer:

8620.53

Step-by-step explanation:

πr2h=π·142·14

Volume ~ 8620.53

Answer:

2,744π units^3

Step-by-step explanation:

V = πr²h = π14²(14)

V = 196π(14) = 2744π ≈ 8,620.53

select the correct answer from the drop-down menu. a rectangular prism has a length, width, and height of 2/3 in, 3/5 inch, and 4/7 inch, respectfully. the volume of the rectangular prism is ______cubic inch. 9/15 - 12/105 - 24/105 - 6/105​

Answers

Answer:

24/105

Step-by-step explanation:

What statement is true? 1) The y-intercept of function a is greater than the y-intercept of function B. 2) The y-intercept of function a is less than the y-intercept of function b​

Answers

Answer:

a is true

Step-by-step explanation:

the y intercept of function a is -2 while on b it is -5

Im very sure that A is correct

What is 3/4÷1/8 3/4÷1/8? Explain or show your reasoning.

Answers

Answer:

3/4 divided by 1/8 = 6

Step-by-step explanation:

mark brainliest plz thank u

3/4 times the reciprocal 8/1 equals 24/4 and 24 divided by 4 equals 6 answer is 6

Please help! (question in attachment)

Answers

Ayy you got it right thank you very much your
Other Questions
Plsssssss help i need an answer look in the pic below can i get some helppppppppp Please help!!!!!Billy and Susie were saving up to buy the new Xbox. Billy got $50 for his birthday and saved $20 each week. Susie already had $25 and saved $40 each week. Write a system of equations to describe this situation. (Im marking brainliest) plzzz help me out!!! Which excerpt from The People Could Fly reflects the historical fact that enslaved people carried cultural elements of their country of origin with them to America?Toby come over and spoke words to the fallen one. The words of ancient Africa once heard are never remembered completely.The folks were full of misery, then. Got sick with the up and down of the sea. So they forgot about flyin when they could no longer breathe the sweet scent of Africa.Say that long ago in Africa, some of the people knew magic. And they would walk up on the air like climbin up on a gate.The ones that could fly shed their wings. They couldn't take their wings across the water on the slave ships. WILL GIVE BRAINILIESTWhat is a push factorWhat is a pull factor Anti-Semitism began in the Middle Ages.TrueFalse What is the theme of the poem?A) The wind can bring relief on a hot day.B) Wind can often spoil a good time.C) Wind is unlike a trusted friend.D) The wind is usually reliable. Each student at school is given 7 folders on the first day of school. The number of foldersprovided to students could be expressed as 7n (where n = number of students)a) If there are 120 students in the school, the number of folders would be ___x__=____folders. Sandra acquired a passive activity three years ago. Until last year, the activity was profitable, and her at-risk amount was $300,000. Last year, the activity produced a loss of $100,000, and in the current year, the loss is $50,000. Assuming Sandra has received no passive activity income in the current or prior years, her suspended passive activity losses from the activity are: a. $90,000 from last year and $50,000 from the current year. b. $100,000 from last year and $50,000 from the current year. c. $0 from last year and $0 from the current year. d. $50,000 from the current year. Which one is for inverse tangent? f(x) = 2x^2 6x + 3 for x = 1 sara had 51 stickers and her dad had 13 stickers how many are in all 3. What are the domain and range of (x) = 4* ?Domain: Range: The sum of 43 and z is equal to 72.98. Enter the equation that represents the description. salt in soap make the soap stronger PLEASE HELP!!! Pleaseee! in the diagram, which pair of angles are corresponding angles? A. 1 and 8b. 4 and 6c. 3 and 7 d. 2 and 4 "To start with, I declare where Ive come from,And then produce my certificates, one by one;My licence with the seal of our lord bishopWhich I show firstthats to protect myselfSo that nobody, whether priest or cleric,Dares interdict me from Christs holy work.What feature of medieval life is reflected in the excerpt?the custom of going to confession regularlythe acceptance of the churchs authoritythe practice of traveling to distant locationsthe importance of knowing ones neighbors Read the paragraph and answer the question below.Parents in a town are concerned about the number of traffic accidents that happen near their children's school. The parents go around the town collecting signatures of people who are asking the city to replace the stop sign in front of the school with a traffic light.Which right, protected in the Bill of Rights, allows the parents to do that?