Mathematics Middle School

2(4x + 5) = 8
What’s x?

Answers

Answer 1

Answer:

x= -1/4

Step-by-step explanation:

2(4x + 5) = 8

8x+10=8

8x=8-10

8x=-2

x=-2/8

x=-1/4

Answer 2

Answer:

it could be .25

Step-by-step explanation:

distribute 2 to 4x +5

8x + 10 = 8

     - 10 - 10

8x = - 2

divide by 8

x = .25 or 1/4

Related Questions

Ron is planning for the back-to-school rush at his store. Notebooks are sold in boxes of 42. Last year he estimated that he would sell 168 notebooks, but he sold 200 notebooks. How much was Ron’s error?
–42
-32
32
168
the answer is -32

Answers

Answer:

its -32 but you allready have that

Step-by-step explanation:

PLEASE HELP 100 POINTS

PLEASE HELP 100 POINTS

Answers

Answer:

its the 3rd one

Step-by-step explanation:

hope this helps

Answer:
The second option, x + y.


Explanation: the value of x is -5/6. The value of y is 4/3. When you add them together, you will result in a positive value:

Since -5/6 and 4/3 don’t share the same denominator, you have to make them the same by finding the “common denominator.” In this question, the common denominator is 6 because 6 and 3 can both be multiplied by a value to get 6 (6 x 1 = 6 and 3 x 2 = 6)

Now, you have to make both of the denominators 6. -5/6 already has a denominator of 6, so it doesn’t change. 3 has to be multiplied by 2 to get 6. But remember, whatever you do to the top, you have to do to the bottom. So 4/3 will be changed into 8/6.

Now you can just add. Remember that the denominator doesn’t change, so just keep it 6. Don’t do 6 + 6.

-5 + 8 = 3

x + y = 3/6, or 1/2. Which is a positive value. Therefore, the answer is the second option, x + y.

A fruit juice recipe calls for 2 parts orange juice and 8 parts pineapple juice. Which proportion can be used to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice?

2 over 8 equals j over 18
8 over 2 equals j over 18
8 over j equals 2 over 18
16 over 18 equals j over 100

Answers

The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:

2/8 = j/18

This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:

2/8 = j/18

218 = 8j

36 = 8*j

j = 36/8

j = 4.5

Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.

Answer:

2 over 8 equals j over 18

Step-by-step explanation
2 over 8 equals j over 18

This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.

So, the correct proportion is:

2 over 8 equals j over 18

A Hawaiian monk seal dives to a depth of -4.13 meters. By how many meters does it need to change his position to get back to sea level?

!!!!!!!!!!!!

Answers

Answer:

4.13 meters

Step-by-step explanation:

If he is -4.13 meters below sea level, he need 4.13 meters to get back to sea level

The answer is 4.13 .

How many cubes with edge lengths of 1/2 inch are needed to fill this cube?

How many cubes with edge lengths of 1/2 inch are needed to fill this cube?

Answers

Answer: 8 squares would be needed 4 on the bottom and 4 on the top

30 lbs of potatoes cost $360. How much would 13 lbs cost?

Answers

Answer:

$156

Step-by-step explanation:

To find how many pounds of potatos an amount is, it's valuable to find how much *one* pound is

With just dividing both sides by 30, we can get that one pount of potatos costs $12

Since we want how much 13 pounds we cost, simply multiple 12 by 13 which gives us an amount of $156

Answer:

$156 plz give branlyist

Step-by-step explanation:

Who Ever Gets All Of Them Correct Gets Brainlyest

Who Ever Gets All Of Them Correct Gets Brainlyest
Who Ever Gets All Of Them Correct Gets Brainlyest
Who Ever Gets All Of Them Correct Gets Brainlyest
Who Ever Gets All Of Them Correct Gets Brainlyest
Who Ever Gets All Of Them Correct Gets Brainlyest

Answers

Answer:

Step-by-step explanation:

Im saying 20 for the first one

30 for the second on

20 for the third on

40 for the forth on

6 for the last on

Which expression represents five less a third of a number? ​

Which expression represents five less a third of a number?

Answers

Answer:

A

Step-by-step explanation:

Answer:

The first option is the answer

hope this helps

have a good day :)

Step-by-step explanation:

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 95 miles per hour. The westbound train travels at 85 miles per hour. How long will it take for the two trains to be 432 miles apart?

Answers

10 difference so it will it 43.2 times

Write the linear equation in function notation
y = -4x + 6

Answers

Answer: f(x) = 4x - 6

f(3) = 4(3) - 6

f(3) = 12 - 6

f(3) = 6

Step-by-step explanation:

Answer is here to help you for the linear equation function notation
Write the linear equation in function notationy = -4x + 6

how to write it in polynomials in standard form y^2+3y^4-7y+2y^3-4

Answers

Answer:

3y^4 + 2y^3 + y^2 - 7y - 4

Step-by-step explanation:

Hey There!!

Your answer is below!!

Step-by-step explanation:

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

\(ax^2+bx+c\)

Move the \(-7y.\)

 \(y^2+3y^4+2y^3-7y - 4\)

Move the \(y^2\)

\(3y^4+2y^3+y^2-7y-4\)

So, Your answer is \(3y^4+2y^3+y^2-7y-4\)

\(GoodLuck!!\)

P.S Tell me if this is wrong....

#\(Be\) \(Bold\)

# \(Always\) \(Brainly\)

\(_{Loserbrazts}\)

A car's speedometer is reading 55 miles per hour. The percent of error is 5%. What is the actual speed of the car? Round your answer to the nearest mile per hour.

A) 51 or 54 mph
B) 50 or 60 mph
C) 53 or 56 mph
D) 52 or 58 mph

Answers

55 x 5% is 2.75 so 2.75 + 55 is 57.75 so its probably D
Answer: D

Solution: 55 times 5%=2.75%
2.75% + 55=57.75

Solve for x. [PLEASE Read carefully]

23(−3.1−x)=5

Enter your answer as a mixed number in simplest form in the box.

Answers

Answer:

-10.6 or 53/5

Step-by-step explanation:

go ogle math

Answer: (3) 73/230

Step-by-step explanation:

You times whats in the brackets with 23 then remove the brackets which makes it = -71.3 - 23x = 5

Then i would swap the 23x and 5 around which makes it = 71.3 - 5 = 23x

subtract 71.3 - 5

-76.3 = 23x

Divide -76.3 by 23 (Use a calculator) =

(3) 73/230

Thats how simplified it can go. (fraction cant be simplified more)

(3) is the leftover whole number that is next to the mixed number

Kenny bought a 50-pound bag of chicken feed for $29.98 and a 25-pound bag for $15.49. Can you use proportional reasoning to find the price of a 40-pound bag? Explain.
Yes; The ratio of pounds to cost is equivalent.


Yes; The unit rates are the same.


Yes; The line containing these two points passes through the origin.


No; There is no constant of proportionality.

Kenny bought a 50-pound bag of chicken feed for $29.98 and a 25-pound bag for $15.49. Can you use proportional

Answers

Answer:

No; There is no constant of proportionality.

Step-by-step explanation:

29.98 divided by 50 is 0.5996 and 15.49 divided by 25 is 0.6196. They are not proportional nor are they equal. There is a difference of 0.02.

no hope this helpped you
Kenny bought a 50-pound bag of chicken feed for $29.98 and a 25-pound bag for $15.49. Can you use proportional

PLEASE HELP The recipe for beef stew calls for 1/4 teaspoon of pepper for every 3 potatoes. If 9 potatoes are used, how much pepper is needed?

Solve the proportion StartFraction one-fourth over 3 EndFraction = StartFraction p over 9 EndFraction to answer the question. Explain your steps.

Answers

Answer: 3/4 teaspoons of pepper for 9 potatoes

Step-by-step explanation:

3 x 3 = 9

3 x 1/4 = 3/4

or

3 + 3 + 3 = 9

1/4 + 1/4 + 1/4 = 3/4

whats the anwer to this? sorry i'm not smart and can't figure it out myself

whats the anwer to this? sorry i'm not smart and can't figure it out myself

Answers

Answer: 35 oranges

Step-by-step explanation:

if one cup if 5 oranges then 5 oranges times 7 is 35

Cindy will need 4 cups to get total of 7 oranges . If you add 2 1/2 +1/2 + 1/2 = 7/2 this is in fraction . But if you add 2 1/2 + 1/2 +4 = 7 whole number .

he number line shows the solution set of which inequality?
A horizontal number line is labeled from 51 to 52. There is a closed circle at 51.52, and the number line is shaded to the right of 51.52.

A. j/4.6 > 11.2
B. j/1.5 > 16.3
C. j/12.7 > 19.6
D. j/1.4 > 1.1

Answers

Answer: B hope is correct

14 3/4 + (-21 1/2 ) ( 14 and -21 are part of the fraction)

Answers

Answer:

21

Step-by-step explanation:

the answer to this specific question is 21

Please need help ASAP.

Please need help ASAP.

Answers

Answer: in this order angle d, e, f line de, ef, fd

Step-by-step explanation:

Here is your answer to your question
Please need help ASAP.

Part 8! Giving Brainliest!
What is a reflection of the y-axis? Give an example.

Answers

Answer:

the y-coordinate remains the same, but the x-coordinate is taken to be the additive inverse.

Step-by-step explanation:

hope this helped sorry if it didint

Answer:

Step-by-step explanation:

give her brainliest<e she deserves it

​Ben's garden is 24 feet long and 56 feet wide. He wants to put fence posts the same distance apart along all sides of the garden. What is the greatest distance apart that he can place the fence​ posts?

Answers

8 feet is ur answer I’m pretty sure

Express -3(-2-1) on a number line

Answers

Answer:

9 on a number line

Step-by-step explanation:

-3(-2-1)

-3(-3)

9

Answer:

Step-by-step explanation:

-

-3(-3) = 9

let's draw a number line from 1 to 9 by taking a scale of 1

1_2_3_4_5_6_ 7 _8_ 9__

help ill give the crown to u if you get it right

help ill give the crown to u if you get it right

Answers

Answer:

2.68

Step-by-step explanation:

2 is to 1.34 as 4 is to x

x=(4*1.34)/2

Answer:2.68

Step-by-step explanation:

what do I write plz help people

what do I write plz help people

Answers

Imagine you are a close friend/ relative to Shakespeare and write how you view him

A photograph measures 5 inches wide and 7 inches long. If you have the photograph enlarged to fit a frame 49 inches long, what is the widest the photograph can be?

Answers

1,715 inch’s please let me know if I’m wrong
The photograph can be no wider than 35 inches I believe. If the original was 7 inches and now 49 then it was multiplied by 7 so I’m assuming that’s what you would do to the width as well which would give you 35.

Plz help me ill give brainliest if you can at least answer five of the questions.



Jimmy’s family moved to a tropical climate. For the year that followed, he recorded the number of days that had a temperature above 40 degrees C each month. His data contained -
14, 14, 10, 12, 11, 13, 11, 11, 14, 10, 13 and 8

For problems 1-8, use the data set below.

1) Find the mean for his data set of days that had a temperature above 40 degrees C.

2) Find the median for his data set of days that had a temperature above 40 degrees C.

3) Find the mode for his data set of days that had a temperature above 40 degrees C.

4) If, instead, there are 5 more days per month that had a temperature above 40 degrees C, what will be the mean for the data?

5) If, instead, there are 2 more days per month that had a temperature above 40 degrees C, what will be the mode for the data?

6) If the number of days per month that had a temperature above 40 degrees C, doubles each month in that year, what will be the median for the data?

7) For what value of x will 9, 16, and x have the same mean (average) as that of 26 and 12?

8) For what value of x will 55 and x have the mean (average) as 67?

9) The mean (average) weight of three boys is 40 pounds. One of the boys weighs 50 pounds. The other two boys have the same weight. Find the weight of each of the boys?

10) A cat consumes 2 cups of milk every day. How much milk does that cat drink on an average in a week?

11) What is the mode for the above question?

Answers

Hmm sorry I don’t understand this

Another day, another question (no decimals)

Another day, another question (no decimals)

Answers

Answer:

same as the last one but they add by 3

2+2+2 = 6 +2 = 8

Step-by-step explanation:

7*3 = 21+ 7= 28

42 divided by 7 = 6 * 2

7    21     42

2     6   12  

I need help please I will put in an image. and I only have 18 points sorry

I need help please I will put in an image. and I only have 18 points sorry

Answers

Answer:

what

Step-by-step explanation:

This is difficult pls mark as brainliest so that I can help you

as an equation

Eight less than 1/3 a number n is -13

Answers

Answer:

n - 8 = n/3

Step-by-step explanation:

8-1/3x=-13
Explanation:
Eight = 8
Less than refers to subtraction
1/3 a number: 1/3 ? A number we don’t know so it’s x
Is an equal sign

Find the area of the figure below.

Find the area of the figure below.

Answers

738.9 units squared is the answer
=120
seperate the shape into a triangle, square and rectangle.
triangle is 8x5=40
square is 4x5 =20
rectangle is 10x6= 60
40+20+60=120
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