Mathematics Middle School

How do I solve this equation?
4-y/5=2-2y/8

Answers

Answer 1

y=−40

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4−y5=2−2y8

4+−15y=2+−14y

−15y+4=−14y+2

Step 2: Add 1/4y to both sides.

−15y+4+14y=−14y+2+14y

120y+4=2

Step 3: Subtract 4 from both sides.

120y+4−4=2−4

120y=−2

Step 4: Multiply both sides by 20.

20*(120y)=(20)*(−2)

Answer:

y=−40

Answer 2

Answer:

y= -40

Step-by-step explanation:

4 - y/5 = 2 - 2y/8

4 - y/5 = 2 - y/4

4 x 20 - y x 20/5 = 2 x 20 - y x 20/4 (reduce the fractions)

4 x 20 - 4y = 2 x 20 - 5y

80 - 4y = 2 x 20 - 5y

80 - 4y = 40 - 5y

-4y + 5y = 40 - 80

y = 40 - 80

y = - 40

Related Questions

A store has a 20% off sale on pants. With this discount, the price of one pair of pants before tax is $15.20. What was the original price of the pants?

Multiple choice question.

A)
$3.04


B)
$12.16


C)
$18.24


D)
$19.00

Answers

Answer:

$19.00

Step-by-step explanation:

The answer would obviously not be the first 2 due to those being lower than the sale price so it would have tot be one of the bottom 2 so i chose one of the two and figured out what 20% off those prices would be to see which matched with $15.20 :) pls give me brainliest

Answer:

C

Step-by-step explanation:

Because 20% of 15.20 is 3.04.

Then, 3.04+15.20= C) $18.24

Your answer would be C) $18.24

15 point reward + brainliest for the CORRECT answer

Answers

The answer is 2/7 click that

HELP ME PLEASE ITS DUE TODAY
A trial in an experiment consists of three events: choosing a card (Red, R, or Black, B), flipping a coin (H or T), and rolling a 6 -sided die ( 1 , 2 , 3 , 4 , 5 , 6 ).
The question is ,"What is the probability, as a fraction, of choosing a red card, the coin landing tails up, and rolling a number less than or equal to 3 ?"

Some1 heeelp

Answers

Answer:

3/24 or about 12.5%

Step-by-step explanation:

Find the future value of the loan p=400 r=6% t=2 years

Answers

Answer:

answer 48

Step-by-step explanation:

s.i=P×R×T/100=400×6×2/100=48

Answer:

It's 48

Step-by-step explanation:

I did this before

Find the median of the data set: 10, 5, 60, 20, 15, 20, 9, 2
17.625
12.5
20
58
60

Answers

Answer:

12.5

Step-by-step explanation:

Hope this helps!

Answer: 12.5.

Step-by-step explanation:

What is 25% of 50
Who ever gets it right gets brainlest ansewer

Answers

Answer:

12.5

Step-by-step explanation:

25%=.25

.25*50=12.5

Answer: 12.5

Step-by-step explanation: If its a percent always divide the number by 100.

EX: 25% of 50

25%=0.25

0.25x50=12.5

I NEED THIS FAST!!!!!! NO LINKS PLEASE Which graph represents the solution set of the inequality Negative 9 greater-than x?
A number line going from negative 13 to negative 7. An open circle is at negative 9. Everything to the left of the circle is shaded.
A number line going from negative 13 to negative 7. A closed circle is at negative 9. Everything to the left of the circle is shaded.
A number line going from negative 13 to negative 7. An open circle is at negative 9. Everything to the right of the circle is shaded.
A number line going from negative 13 to negative 7. A closed circle is at negative 9. Everything to the right of the circle is shaded.

Answers

Answer:

the first one

Step-by-step explanation:

Set up a proportion and use cross multiplication to solve.

16.8 is what percent of 48?


285%
8%
28.5%
35%

Answers

first, set up a proportion. 16.8/48 = x/100.

then cross multiply. 16.8 * 100. the answer to this is 1680 (take the decimal point and move it 2 places to the right).

lastly, divide. Take 1680 and divide it with 48.

your answer is 35%

Answer:

35%

Step-by-step explanation:

Let [tex]x[/tex] = the percentage

Set up the proportion:

[tex]\dfrac{16.8}{48}=\dfrac{x}{100}[/tex]

Cross multiply:

[tex]\implies 16.8 \cdot 100=x \cdot 48[/tex]

[tex]\implies 1680=48x[/tex]

Divide both sides by 48:

[tex]\implies \dfrac{1680}{48}=\dfrac{48x}{48}[/tex]

[tex]\implies 35=x[/tex]

Therefore, the solution is 35%

Joe is performing a dilation. One of his points is Y'(-4, 2), and another point is Y(-2, 1). What scale factor is he using?

2

-
1

Answers

Answer:

1/2

Step-by-step explanation

Please mark me as brainliest!

He is using a 1 scale factor.

What is the mean of this data set? {4, 7, 13, 3, 9} Enter your answer as a decimal in the box.​

Answers

here it is

Step-by-step explanation:

the mean is 7.2

4+7+13+3+9=36

36÷5=7.2

Answer: Your answer is 7.2

Step-by-step explanation: To get the mean add all the numbers together and then divide them by the amount of numbers there is. Also I did the k12 quiz here's proof:

Hope it helped :D

A juice box contains 6 fluid ounces of juice. Maria bought a package of 10 juice boxes.

How many cups of juice did Maria buy?

Enter your answer in the box as a decimal.

Answers

Answer:

7.5

Step-by-step explanation:

To find the total amount of ozs you multiply 6x10 which is 60. So you have 60 fluid ozs.
To convert fluid oz to cups you divide ounces by 8.

So 60/8 is 7.5

What is y if the ordered pair (25, y) is a solution of the equation shown?
y= 1/5x-1

A. 4
B. 5
C. 24
D. 124

Answers

Y=(1/5)*25-1
=25/5 -1
= 5-1
=4
Therefore y= 4

Answer:

A:4

Step-by-step explanation:

Please help if you can.
the width of a window in this blueprint is 54 inches. How wide is the actual window?
___ft

Answers

Answer:

It’s 5 feet wide

Step-by-step explanation:

Hope I helped you!

Please mark me as brainliest!

Nobody has yet :(

Answer:

5 feet wide

Step-by-step explanation:

PLEASE HELP DUE DATE IS 12!!!!

Answers

Answer: I’d say 25% but someone else can correct me if I’m wrong

Step-by-step explanation:

75%. The box is where the majority are and it is above fifty but below 90

Pls help I need to finish my homework

Answers

Answer:

2880

Step-by-step explanation:

48 x 60 = 2880

2880 the calculator did that

what is the passcode for Horatio's Haunted House? : pls help fast it is due soon

Answers

Look down below

Step-by-step explanation:

In this table, for every 1 hour that passes, there will be 7 screams. So, if we want to fill out the table, all we have to do is divide or multiply by 7:

6 hours * 7 = 42 screams

56 / 7 = 8 hours

12 hours * 7 = 84 screams

We want to solve different problems with linear relations so we can get the code.

We will find the code: SCARY

a) First we want to see which artist is the fastest.

To see this, we just need to take the quotient between the number of faces painted and the time it takes to each one to paint these faces.

We can see that the faster one is artist S, with a rate of:

r = 8 faces /100min = 0.08  faces/min

Then here the correct option is S.

b) Here we must solve:

(0.08 faces/min)*T = 1 face

T = (1 face)/(0.08 faces/min) = 12.5 min

So the correct option is C.

c) in two and half hours there are 2.5*60min = 150 minutes.

So we must compute:

(0.08 faces/min)*150 min = 12 faces

The correct option here is A.

d) The rate of artist Z is:

r = (6 faces)/(78 min) = (0.077 faces/min)

Then we must solve:

(0.077 faces/min)*T = 10 faces

T = (10 faces)/(0.077 faces/min) = 130 min

So the correct option is R.

e) First, the rate at which artist A works is:

r = (9 faces)/(120 min) = 0.075 faces/min.

The time needed to paint 18 faces is given by:

(0.075 faces/min)*T = 18 faces

T = (18 faces)/(0.075 faces/min) = 240 min = 4 hours.

We know that the artist wins $11 per hour, then in 4 hours the artist wins $44, the correct option is Y.

Then the code is:

SCARY

If you want to learn more, you can read:

https://brainly.com/question/14305692

is (3,16) a solution for y=5x+1, Yes or No

Answers

Answer:

[tex]Yes[/tex]

Step-by-step explanation:

[tex](x,y)[/tex]

[tex](3,16)[/tex]

[tex]16=5(3)+1[/tex]

[tex]5*3=15[/tex]

[tex]15+1=16[/tex]

[tex]16=16[/tex]

[tex]\mathrm\:{So\:(3,16)\:is\:a\:solution\:to\:the\:equation\:y=5x+1[/tex]

Answer:

No

Step-by-step explanation:

Root

(- 1/5,0)

y = intersept

(0 , 1)

✨Hope it helps✨


Khan math homework due at 11 pm

Answers

Answer:

V=502.4

Step-by-step explanation:

3.14x4^2x10

Hope this helps :)

Ignore this answer.

Math ugh
Can someone help me?
If an employee worked 60 hours in a week, how much money should he have earned? Use the equation to show you work.
Choose the best answer below.

A) $780

B) $830

C) $880

D) $930

Answers

The answer is C, I took this test already

I neeeed halllllllllp
Pwease UwU

Answers

24 12 4.. I believe

Please help me right answers please!

Answers

Answer:

Why are these so hard

why cant u do it on ur own

HELPPPP!!! I need this answer asap pleas all my points

Answers

Answer:

57.72 ft²

Step-by-step explanation:

Find the area of a semicircle with radius 2 ft.  Subtract this from the area of a triangle with base 8 ft and height 4 ft.  Add this to the area of a rectangle with width 6 ft and length 8 ft.

Area of semicircle = [tex]\dfrac12\pi r^2=\dfrac12 \times 3.14 \times 2^2=6.28[/tex]

Area of triangle = [tex]\dfrac12 \times base \times height=\dfrac12 \times 8 \times 4=16[/tex]

Area of rectangle = width x height = 6 x 8 = 48

Total area = (16 - 6.28) + 48 = 57.72 ft²

Jen makes knitted scarves to sell. At a craft fair, she sells 22 scarves. Each scarf sells for $35.

How much money does Jen make?

Enter your answer in the box.

Answers

Multiply number sold by price:


22 x $35 = $770


Answer: $770

Multiply the amount of scarves that she sells by the price of one scarf.
22x35=770
Answer:$770

help me please knurvfbvckue

Answers

Answer:

∠P = 40°

Step-by-step explanation:

Vertical Angles Theorem

Vertical angles are a pair of non-adjacent angles formed by the intersection of two straight lines.

Vertical angles are congruent, which means they are equal.

Therefore, ∠P = 40°

p = 40° because of the vertical angles theory

i need the answer lol

Answers

Answer:

72 I believe

Step-by-step explanation:

Answer:

A. 72

Step-by-step explanation:

When ordered least to greatest, number 72 is in the middle

HELP! Plz! I dont know how to do this anymore

Answers

i don’t know if this correct i haven’t done it in two years but i think the answer is 76 but i’m not 100% sure
The correct answer is n=25

help me

What is the surface area of the square pyramid represented by the net?

Answers

Answer: Right square pyramid

Solve for surface area

A=a2+2aa2

4+h2

Step-by-step explanation:

Answer:

64cm squared

Step-by-step explanation:

Square: 4*4 = 16

Triangles: 4((4*6)/2))

      = 4(24/2)

      = 4(12)

      = 48

Add the square and triangles together

      = 16 + 48

      = 64

The total will be 64 cm^2

solve this puzzle pls

Answers

Answer:

linemeasurementsfractionsplots

Step-by-step explanation:

I think its right

sorry if this is late

do these problems please

Answers

Answer:

Step-by-step explanation:

(a)

0, 1, 2, 2, 2, 2, 2 3, 3,

3, 3, 3, 3, 3, 3, 3, 4, 4,

4, 5, 5, 5, 5, 6, 6, 6, 6

(b)

*View attached table*

Hope this helps!          

please help me I need it now

Answers

Both x and y are positive
It is positive both are positive
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