Mathematics Middle School

MATH
1. Solve for x: 2x + 8 = 180
x=
2.Solve for x: 3x - 3 = 90
x=
3.Solve for x: 2x - 5 + x - 7 = 180
x=
4.Solve for x: x + 1 + x + 4 + x - 2 = 90
x=

Answers

Answer 1

Answer:

1. x = 86

2. x = 31

3. x = 64

4. x = 29

Step-by-step explanation:

1. 2x + 8 = 180

-8 -8

2x = 180 (divide both sides by 2 to get x by itself)

2. 3x - 3 = 90

+ 3 +3

3x = 93 (divide both sides by 3 to get x by itself. you divide because 3x is multiplying and you have to do the reverse operation)

3. 2x -5 + x - 7 = 180 (you combine like-terms)

3x -12 = 180

+12 +12

3x = 192 (you divide by 3 on both sides)

4. x + 1 + x + 4 + x - 2 = 90 (combine like-terms)

3x + 3 = 90

-3 -3

3x = 87 (divide both sides by 3)

Answer 2

Answer:

1) 2x + 8 = 180

Take 8 to the right side.

2x = 172

Divide both sides by 2.

x = 86

                                                                           

2) 3x - 3 = 90

Take -3 to the right side.

3x = 93

Divide both sides by 3.

x = 31

                                                                           

3) 2x - 5 + x - 7 = 180

Combine like terms.

3x - 12 = 180

Take -12 to right side.

3x = 192

Divide both sides by 3.

x = 64

                                                                             

4)  x + 1 + x + 4 + x - 2 = 90

Combine like terms

3x + 3 = 90

Take 3 to right side.

3x = 87

Divide both sides by 3.

x = 29

                                                                           

Related Questions

Which graph represents the linear equation y equals one fourth x plus 1 on the coordinate plane?

Answers

Answer: It is the last graph you listed. y=1/4x+1 this means the slope is 1/4 and the y intercept is. The last graph matches this exact description.

Step-by-step explanation:

I believe it’s the second before last graph because the plus one in the equation represents a shift up of one unit which is represented and being that the slope (rise/run) is 1/4, it also shows how you reach the next point by running 4 units to the right and rising one unit up.

What is the median in 52, 48, 48, 54, and 50? Is it 50 or 52?

Answers

Answer:

the median would be 50.

Step-by-step explanation:

I hope this helps

Answer:

50.

Step-by-step explanation:

Median is the middle value of a list set in ascending order.

More questions for the unit test.

Answers

Answer:

1/10 and C

Step-by-step explanation:

     You wouldn't have a 9/10 because that is too high. It can't even possibly be 3/10. You have a 2/5 chance of getting one grape treat. Then, it would become 1/4 chance. That would make the chances of getting both very small. 1/10th is the only reasonable one.

     There is only 2 choices that it can land on. That means it would be half chance of getting either. Only 0.5 or C is 1/2 or 0.5 of half.

The answer is b on edge 2021

write answers only pleaseeeeeeeeeeeeeeeeeeeeeeee fasttttttttt

Answers

Answer:

4(x-1)+9=17 answer only

the third one down 4(x+1)+9=17

A bedroom (14 ft by 12 ft) and hallway (8 ft by 3 ft) are getting new wood flooring. Wood flooring is priced at $6.20 per square foot. How much will it cost to add the wood flooring?
a-$1,190.40
b-$86.80
c-1041.60
d-$148.80

Answers

Answer: 1190.4

Step-by-step explanation:

14X12= 168

8x3=24

168+24=192

6.20x192= $1,190.40

I would be A:1,190.40

A box 2 m by 4 m by 8 m is filled with cubes of volume 8 cm³. If these
cubes were lined up, how long a line would that be?

Answers

The total line length of cubes lined up would be approximately 1.6 x 10^7 cm.

To find the total line length of cubes lined up, we need to find the total number of cubes in the box and then multiply it by the side length of a cube.

We can find the total number of cubes in the box by dividing the volume of the box by the volume of a cube:

Volume of the box = 2 m * 4 m * 8 m = 64 m³

Volume of a cube = 8 cm³ = 8 x 10^-6 m³ (converting the cm³ to m³)

Number of cubes = 64 m³ / 8 x 10^-6 m³ = 8 x 10^6

Then we can multiply the total number of cubes with the side length of a cube to find the total line length of cubes lined up :

Therefore, Line Length = 8 x 10^6 * 8 cm

= 6.4 x 10^7 cm

= 1.6 x 10^7 cm.

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need help with algebra 1 assignment.
see download for assignment, and please show all work, it would really help me understand!
thanks so much, have a nice day :)

Answers

the picture is to blurry :(( could you try adjusting it ?
hey i hoped this helped you understand just let me know if you want me to answer the rest if you can’t figure it out :)

What is the area of the square base?


The area of the square base is

feet2.

What is the length and width of the storage unit?


The length of the unit is

feet.

The width of the unit is



feet.

Answers

2*l+b

Step-by-step explanation:

Athena square foot

Answer: 2*l+b is the answer

Step-by-step explanation:

Can someone help with any of the problems on the page, please?

Answers

Answer:

use your bar graph to answer the question just put 100 in each of the box

Step-by-step explanation:

answer please its for my finals please

Answers

Answer:

Part A: c = 2.25 + b

Part B: c = 6.75, b = 8

hope this helped!

C.8 divided by 3 equals 600

The letters in the word ALGEBRA are placed in a bowl. What is the probability of NOT choosing A

Answers

Answer:

5/7 or .714

Step-by-step explanation:

Answer:

0.71 percent, or [tex]\frac{5}{7}[/tex]

Step-by-step explanation:

There are 7 letters in a bowl.

However, two of them are both A.

So, out it would be [tex]\frac{2}{7}[/tex] for the probability that you WOULD choose them.

[tex]\frac{5}{7}[/tex] for your problem.

≈0.71 percent

I'll give brainlest <3

Answers

45 maybe bc it’s small

Use the digits 5, 3, and 2 only once in each number.
How many different 3-digit numbers can you make?
A. 5
B. 12
O c. 8
OD. 10
O E 6

Answers

I think B

Step-by-step explanation:

Since 3 is a odd number, you can make a lot of numbers

the answer is six, picture shown to prove

A bag contains 10 3/4cups of almonds. A serving of almonds is 1/4 cup. How many servings of almonds does the bag contain?

Answers

Answer:

43!

Step-by-step explanation:

There are 3 servings in 3/4 cups.

In each 1 cup there are four servings, so 4x10=40

40+3=43

The number of servings of almonds does the bag contains is 43.

Given that,

The bag contains [tex]10 \frac{3}{4}[/tex] almonds cups. And, the almonds served is [tex]\frac{1}{4}[/tex] cup.

Based on the above information, the calculation is as follows:

Here in [tex]\frac{3}{4}[/tex] cups there should be 3 servings.

And, for every 1 cup, there should be 4 servings

Therefore

[tex]= 4\times 10[/tex]

= 40

So, the total serving of almonds should be

= 40 +  3

= 43

Therefore we can conclude that the number of servings of almonds does the bag contains is 43.

Learn more: brainly.com/question/12135741

My question is What are the colors of the shoes wom by students in my school?
Now I need to use the definition for mean median mode range,LE UE LQ and UQ

Answers

Answer:

blue,  black, brown, and white

Step-by-step explanation:

What does "B" stand for in the volume formula?

A: Radius of the base

B: Perimeter of the base

C: Shape of the base

D: Area of the base

Answers

B stands for Area of the base in the volume formula

Answer:

D

Step-by-step explanation:

because in volume we all multiple the surface area with the length to find it

No pic just type answer pls.

Answers

Answer:

55.716

Step-by-step explanation:

multiply the volume value by 16.387

Please give me Brainliest

55.176 multiply value by 163.87!!

please help, I give brainliest.

Answers

2 and a half batches of raisins
2 and a half batches of raisins

PLZZZZ HELPPPPPP NOWWWWWW PLZ PLZ PLZ

Answers

Answer:

1. T

2. O

3. L

4. C

5.B

6.H

Step-by-step explanation:

Find all the solutions to z^4 = -4 in complex numbers.
The complex numbers should be a+bi, where a and b are real

Answers

Answer:

z = 1 - i

z = 1+i

z = -1 - i

z = -1 + i

Step-by-step explanation:

I think?

10 ÷ 5 + 4 ( 72 - 6 )

Answers

Answer:

266

Step-by-step explanation:

Karen is planting 18 bushes and 12 trees in rows. If she wants all the rows to be exactly the same, with no plants left over, what is the greatest number of rows Karen can plant?

? rows

Answers

Answer: 6 rows

Explanation:
The greatest common factor of 18 and 12 is 6, so the answer is 6 because Karen doesn’t want any leftover plants.

Answer:6

Step-by-step explanation:

The LCM of those two

PLEASE HURRY

Jada plotted √3 on a number line shown. How would you convince Jada that this location could not possibly represent √3

Answers

Because it doesn’t equal exactly 1.7 it equals about 1.73205

An angle measures 64.4° more than the measure of its supplementary angle. What is the measure of each angle?

Answers

Answer:The supplementary angle measures 58 degrees

The angle measures 122 degrees

Answer:

58 degrees is the answer

Step-by-step explanation:

please help me with this question

Answers

put your answers to an app called Photo math ,helped me a lot and also they explain there how u got that answer

This rectangular prism is 12 cm high, 8 cm wide, and 10 cm long. What is its surface area in square cm? Explain or show your reasoning.

Answers

Answer:

592cm^2

Step-by-step explanation:

Answer:

Surface area = 592 cm^2

Step-by-step explanation:

Surface area of cuboid = 2(lw+wh+lh)

2(80+120+96) = 592

4 [ 4 . 5 - 2 ( 1 . 2 ) ] =
help

Answers

Answer:

8.4

Step-by-step explanation:

4 [ 4 . 5 - 2 ( 1 . 2 ) ] =

4 [ 4 . 5 - 2 . 4 ] =

4 [ 2.1 ] =

8.4

4 [ 4.5- 2( 1.2)] = 8.4

Salma made 6 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 6 necklaces was $35.40. If the beads cost $2.60 for each necklace, how much did each pendant cost?

Answers

Answer:

$3.30

Step-by-step explanation:

2.60*6= $15.60 beads per necklace

35.40-15.60= $19.80 total pendant

19.80/6= $3.30 per pendant

6(2.60) +p =$35.40
15.60 +p = $35.40
P=$19.80 but that is for all 6 pendant so must divide by 6
19.90 /6 =3.30
So each pendant is $3.30

What is the volume of the figure below, in cubic centimeters?

756
936
1,008
1,080

Answers

Answer:

936 cc

Step-by-step explanation:

v = (8  * 9 * 10) + (12 * 9 * 2)

v = 936 cc

936
i hope this helps :)

The distance traveled can be calculated using the formula D=s⋅t where s is the speed and t is the total time. Which of the situations below represent a total distance of 200 km? Select all that apply.

A) 50 km/hr for 4 hours
B) 100 km/hr for 2 hours
C) 55 km/hr for 4 hours
D) 40 km/hr for 5 hours

Answers

Answer:b is the answer

Answer:

A B and D

Step-by-step explanation:

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