Mathematics Middle School

Which of the following expressions are equivalent to each other?
(Group of answer choices)

1. 2(x+4)

2. 8+2x

3. 2x+4

4. 3(x+4)−(4+x)

5. x+4

Answers

Answer 1

Answer:

Number 1 and 2

Step-by-step explanation:

For number 1, you have to distribute the 2 so 2*x=2x, and 2*4=8

That makes 2x+8 and number 2 is the only answer

Answer 2
1 and 2 . hope this helps :)

Related Questions

Can somebody answer this question..?

Answers

F..................!!!!!
F.............................

On the first week of class, Lisa reads 45 pages in her history book. It takes her 8 minutes to read. The next week she reads 36 pages in her history book. How many minutes would it take her to read the next week?

ANSWER CHOICES: A:5.25 minutes B: 9 minutes C:6.4 minutes D:202.5 minutes

Answers

Answer:

I wanna say C  not positive but I think C

Step-by-step explanation:

Answer: it would take her 6.4 minutes, answer C. If you divide 45 by 8 you get 5.625. Then if you dived 36 by 5.625 you get 6.4 minutes.

Please help I will mark brainliest

Answers

9. $4.5 per can

.

.

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.

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.

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.

.

.

Answer:

1.  4.5

2. 1.714285714

3. 14.28571429

4. 18.57142857

Explanation:

Divide 9/2 which you will get 4.5

Divide 12/7 which you get 1.714285714

Divide 100/7 which is 14.28571429

Divide 130/7 which is 18.57142857

What is -104/30 as a mixed number??? ANSWER ASAP

Answers

Answer: -3 7/15

Step-by-step explanation: You divide -104 by 30 and get -3 remainder 14. You put -3 as the whole number and 14 as the numerator of the fraction. The denominator is 30 since it is the divisor. Then, you simplify and get -3 7/15.

A bottle of water 2/3 full. You drink 3/4 of the water. Use a model to find the portion of the bottle of water that you drink .

Answers

Answer:

3/4 out of 2/3

Step-by-step explanation:

Please help!!!!!!!!!!

Answers

Answer:

it should still be 40 if you think about it.

Step-by-step explanation:

ANSWER

I think it is c

NEEDED FOR A TEST ASAP PLEASE!!!


Serena paid $194.99 for a game system and then bought two equally-priced games. She spent a total of $284.97.

Part A

If p represents the price of one game, which equation represents the situation?
2p – 284.97 = 194.99
2p + 194.99 = 284.97
2p + 284.97 = 194.99
2p – 194.99 = 284.97
Part B

What is the price, p, of one game?

$ ____________

Answers

Answer:

Part A is 2p – 194.99 = 284.97

Step-by-step explanation:

the price for one game is 44.99

The price is 44.99 for a game.

A master baker can fill a big order in 6 hours. A student baker can fill the same order in 8 hours. They start working together, and after 2 hours, the student leaves and the master baker finishes the work alone. How long will it take him to finish the order?

Answers

I think it is 4

:)

hope this helps

Answer:

2 hrs and 30 min

Step-by-step explanation:


Find the missing values in the ratio table. Then write the equivalent

Answers

Answer:

sorry it wouldn't let me get out of answering

Step-by-step explanation:

I really don’t know but you can search it up

How do you find the unit rate?

Answers

Answer:

A unit rate is a rate with 1 in the denominator. If you have a rate, such as price per some number of items, and the quantity in the denominator is not 1, you can calculate unit rate or price per unit by completing the division operation: numerator divided by denominator.

Step-by-step explanation:

i honestly looked it up hope it helped tho lol

You can calculate the unit rate or the price by doing the division operation . ( numerator divided by denominator )

3 1/5 ÷(z− 1/2 )=2 2/3 ÷(z+ 1/3 )

Answers

Answer:

10

Step-by-step explanation:

if u take 5x2 u get your answer

The answer would be 10 If your take 5x2 your answer would be 10.

Please help me, due soon

Answers

Answer:

B. 21 and 19/25

Step-by-step explanation:

Rewrite the decimal number as a fraction with 1 in the denominator

21.76=21.761

Multiply to remove 2 decimal places. Here, you multiply top and bottom by 102 = 100

21.761×100100=2176100

Find the Greatest Common Factor (GCF) of 2176 and 100, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 4,

2176÷4100÷4=54425

Simplify the improper fraction,

=211925

In conclusion,

21.76=211925

Answer: B. 21 and 19/25

Step-by-step explanation:

Simplify the improper fraction,

=211925

In conclusion,

21.76=211925

3r + 8 =5
solve for r

Answers

Answer:

r=-1

Step-by-step explanation:

Hey girl the answer = r=-1

.
Which phrase matches the equation -3r + 5 = 28?
a The product of three times a number equals twenty-eight.
b The sum of three and a number times negative five gives twenty-eight.
c The product of negative three and a number plus five equals twenty-eight.
d The sum of negative five plus three times a number equals twenty-eight.

Answers

Answer:

b

Step-by-step explanation:

b The sum of three and a number times negative five gives twenty-eight

b is the answer.fxjfxfhxhxng jgcjgc

BRAINILIST TO THE FIRST PERSON TO ANSWER THIS AND GET IT CORRECT!!!!!!! :>

Answers

Answer:

24.554

Step-by-step explanation:

Answer:

24.554

Step-by-step explanation:

The function f(x) = -x + 5 has domain values of -3, 3, and 9.
Which are the corresponding range values?

A 3,7, and 11

B 7,3, and -1

C 9,3, and -3

D 12,3, and -6

help!

Answers

Answer:

A 3,7, and 11

Step-by-step explanation:

Answer:

A 3,7, and 11

Step-by-step explanation:

Domain is the x-value so you replace all the x's in f(x)=-x+5 with -3,3, and 9

f(-3)=2/3(-3)+5

= 3

f(3)=2/3(3)+5

=7

f(9)=2/3(9)+5

=11

Hope this helps!

Help Please 100 point's + Brainly.est 8th grade Math Look at the photos below and answer them PLEASE

Answers

Part 1.

A is.

45 and 34 wood pieces left

B is.

It takes 11 cause 100-89=11 and 11+89=100 and it keeps subtracting 11.

C is.

I dont understand the question(sorry)

D is.

At least 9 shelves,

100-11=89

89-11=78

78-11=67

67-11=56

56-11=45

45-11=34

34-11=23

23-11=12

12-11=1

And you would have 1 wood piece remaining!!

Question 1.
Part one
A. After you build 5 you get 45 pieces, then after you build 6 you get 34.

B. It takes 11 pieces of wood to build each shelf

C. It is negative since y is decreasing in value, while x increases

D. you can build nine shelves
Not sure if there is a specific method you need to use, but you can just do 100 divided by 11 to get 9 remainder something, but you can only build full shelves.

Part 2
A. It took 20 minutes to set up building materials, since the line starts at the y-intercept at (0,20)

B. It takes 25 minutes to build each shelf, since the graph shows that after the first shelf there was a twenty five minute increase from 20 to 45

C. If you work at a constant rate it will take 225 minutes to build nine shelves, you can do this by either multiplying 9 by 25 or continuing the line on the graph.

D. You spent 320 minutes preparing and building 12 shelves. Since we already know it takes 20 minutes to prepare, you just need to multiply 12 by 25 to get 300, then you add them together to get 320.

E. This line represents the amount of time it takes to build shelves


Question 2

A.the initial deposit was $95

B. The line would represent the decrease of money in your account, caused by the maintenance fee.

C. The line will be negative since the y outputs decrease by 6.5

D. The monthly maintenance fee is $6.5, you know this by looking at the difference in outputs

E. After sixth months in total, the remaining balance is $56, you multiply 6.5 by 6 months to get 39, then subtract that from 95.

F. Your balance will be negative after 15 months, just divide 95 by 6.5 then round the answer up


Which of the following is a pair of similar triangles?

A) Image A (1st Image)
B) Image B (2nd Image)
C) Image C (3rd Image)
D) Image D (4th Image)

Answers

Image C for sure.

Sure, both triangles don't show all angles, But if you look at the first triangle in image C, it's just a more stretched out version of the second one. The angles are the same, just one triangle is slightly taller.

image C would be the one

Susan is buying supplies for a party. Spoons only come in bags of 10 and forks only come in bags of 6. What is the least number of spoons and forks she can buy so that she will have the same number of each

Answers

Answer:

The least amount of forks would be 5 bags of forks. The least amount of spoon would be 3 bags of spoons.

Step-by-step explanation

6*5=30

10*3=30

Answer: 3 bags of spoons and 5 bags of forks

Which graph shows the image being rotated 90°?

Answers

Answer:

its A

Step-by-step

C is just a trick one

b can be cancelled cuz it does tot go in the ll quadrant

and D can be cancelled cuz its like a 20 degree turn

A car travels 40 miles west then goes 30 miles north. How far is the car from its starting point?

Answers

50 miles is the answer
Crazy’s wrongs you have to divide, I divided and I got 11

A linear function can be used to estimate the decrease in snowfall measured since 1920. The decrease in the annual snowfall has been on average 0.24 inches per year. Let x represent the number of years since 1920, when the measurements began, and let y represent the annual snowfall. The initial measurement in 1920 was 48.6 inches. Using the average change and initial measurement, which is the best estimate of the annual snowfall in the 78th year after records were kept? Round to the nearest hundredth.

Answers

Answer:

29.88 inches

Step-by-step explanation:

Equation of a line is given in the form  

Where

m is the slope [rate of change, here, rate of decrease]

c is the y-intercept [at 1920, the snowfall]

From the problem, we see that snowfall decreases by 0.24 inches per year, that will make the slope (m) to be -0.24

Also, at 1920, the initial measurement was 48.6 inches of snow, that is the y-intercept (b). Thus, we can write the equation of this line as:

y = mx + b

y = -0.24 x +48.6

To find annual snowfall, 78th year after 1920, we simply plug in 78 into "x" of the equation just found. So:

y = -0.24(78) + 48.6 = 29.88 inches

Answer:

29.88 inches

Step-by-step explanation:

I took the quiz

I need help with this too please​

Answers

Answer:

on my work i put d in it was correct idk if it's gone be right for Soo..........

you’ll get it , keep workin .

Please solve (8th grade pre-algebra)

Answers

Answer: Z

Step-by-step explanation: The only correct answer is Z, i used a trusted website for this, so its most likley correct.

Hope this helps!

:D

PLEASE HELP ME! 40 POINTS!

there’s a photo that has the problem.

Answers

We can’t see the image please post this again

Yo can someone help me out

Answers

Answer:

Your answer is 3,947 ÷ 45 = 87 r 32

Hope this Helps

<3

the second option :)

4 kg, 35 grams = ____ grams

Answers

Answer:

4,035

Step-by-step explanation:

A bicycle shop advertised all mountain bikes priced at 1/3 discount.

a. What is the amount of the discount if the bicycle originally costs $327 ?

b. What is the discount price of the bicycle? Explain how you came up with your answer.

Please explain

I will mark Brainly and this is worth 42 points

Answers

Answer:

a. 109$

b. 327/3= 109

you're welcome

327/3=$107 so the cost of the discounted mountain bikes are $107. The discounts subtract $214. I think im a lil confused on the question

Devin created a game as part of a math assignment. The game shares the same rules as the Integer Game, however, in addition to integers, there are cards that contain other rational numbers such as -0.75 and −0.125.

Write a multiplication or division equation to represent the problem below. Show all related work.

Devin discards five -0.125 cards from his hand. How does this affect the overall point value of his hand? Write and solve an equation to model this situation.

Answers

Answer:

iḿ just as confused as you

my guy

Step-by-step explanation:

Uhh I need help with this too if anyone is willing!:)

7 (4 - x) ≤ − 4 (−7x − 7)

value of x plz solve

Answers

the answer is of this is x>0
answer: x= x > that sign with the line on the bottom (i don’t have it since i’m using a phone) and 0 so don’t forgot the sign has to have a line on the bottom x > 0 DONT FORGET THE LINE
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