Mathematics Middle School

Help me please I’ll give brainlest

Answers

Answer 1

The answer is A. Because if you subtract 3 from 23 it will be 20 and 20 divided by 2 is 10

Answer 2

Answer:

-17

Step-by-step explanation:

1) rewrite: (3 - n) divided by 2 = 10

2) Multiply both sides: (3-n)/ 2 = 10

3) move constant to the right: 3 - n = 20

4) calculate: -n = 20 - 3 then, -n = 17

5) change signs: n = -17

Hope this helped and wasn’t confusing, good luck! :)

Related Questions

I WILL GIVE BRAINLIEST TO CORRECT ANSWER

Answers

Answer:

data set 2

Step-by-step explanation:

Can someone please help me?!

A middle school science teacher wants to conduct some experiments. There are 15 students in the class. The teacher selects the students randomly to work together in
groups of five.

a.
In how many ways can the teacher combine five of the students for the first
group if order is not important? (3 points)

b.
After the first group of five is selected, in how many ways can the teacher
combine five of the remaining students if order is not important? (3 points)

Answers

A is 3
B she can pick 2 by 2

The answer is A. She can pick in groups of 3

Ill give brainliest for the correct answer and explanation!!

Answers

Answer:

false true true false false

Step-by-step explanation:

use percentage and divide by the number given

Your answer would be false true true false false

Which inequality is true?
|--100 > 150
|--1001 < 50
-50 > 1-100
|--50 < -100

Answers

|-100|>|50|

Your supposed to do the Diagnostics yourself though...

CIs the correct answer

A scuba diver studying marine life is 4 feet below sea level. From that depth, the diver descends 72.5 feet to the ocean floor. He then rises to 6.25 feet. He rests there. Where is the diver relative to sea level when he is resting?

Create a number sentence and find the value where the diver is resting.

Answers

Answer :

“−66.25”

Explanation:

I did “ -72.5 + 6.25” I put a “-“ because the question says “below sea level” so that means that it’s a negative number. And the answer is “−66.25”

Find the value of the variable(s) in each figure. Explain your reasoning

Answers

Answer:

x=14

y=37

Step-by-step explanation:

9x+12+3x=180

12x+12=180

-12 -12

12x=168

divide both sides by 12 and

x=14

then plug in 3(14)+4y-10=180

42+4y-10=180

32+4y=180

4y=148

y=37

X=15
Y=36.25

9x+12+3x=180
-12 -12
12x=180
divide by 12 both sides
X= 15

4y-10+3x=180
Substitute x for 15
4y-10+45=180
4y+35=180
-35 -35
4y=145
divide 4 both sides
Y=36.25

A coin will be flipped three times. The result of each flip is either heads (H) or tails (T). The outcome HTH represents the first result is heads, the second result is tails, and the third result is heads. The list of all possible outcomes is shown. Each outcome is equally likely.
HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

a. 1/4
b. 1/3
c. 3/8
d. 1/2

Answers

Answer:

Step-by-step explanation:

♡ ∩_∩

（„• ֊ •„)♡

┏━∪∪━━━━┓

♡ good luck 。 ♡

┗━━━━━━━┛

the answer is D. 1/2

will give brainliest!!!! Which of the following scatterplots would have a trend line with a positive slope?

Answers

Answer:

I'm not sure if its correct but I say its the third scatterplot.

the first scatterplots

Write 2 expressions that is equivalent to double (3x+4y)

Answers

Answer: The answers are 2(3x+4y) and 6x+8y

Step-by-step explanation:

because 2 doubles it

Answer:

One is 6x+8y

And the second one is 12x+16y

Step-by-step explanation:

May you please help me?

Answers

Answer:

.35 .49 .16

Step-by-step explanation:

13/37 18/37 6/37

.35.49.16 is the correct answer

I have a test in 10 minutes and guesses on how i will do??

Answers

Answer:

I am sure you'll do great U-U

you have my blessings! ^^

hopefully u do great!!!! good luck

A skydiver was at an elevation of 17,833 feet. One minute later, she was at 4,297 feet. Find her average change in elevation per second.

Answers

Uhhhhhhhhhhhh O.O ndhsjsnxjje

The answer is 4.18!!!!!!

I need some help on this can u guys help?

Answers

1 and 3 are equations. Equations always have = sign

:( HELP ME PLEASE ASAP

Answers

Answer:

the y-intercept is 1

the slope is 2/1

Step-by-step explanation:

Answer:

y=2x+1

Step-by-step explanation:

you go up one which is why you start at 1 on the y axis. then you go up 2 and right 1 which is 2/1 aka 2.

Please answer Due in 10 min.

Answers

i think it is BBBBBBBB

I believe the answer is B

Which algebraic representation best represents the translation?
А.
A) x-3, y +4
B) x - 4, y + 3
C) x + 4, Y-3
D) x + 3, y - 4

Answers

Answer:

Step-by-step explanation:

The x-axis got added 4 units.

The y-axis got subtracted 3 units.

And that is what it says on answer C.

Your answer will be D

Solve for the given variable.
a. 4y + 3 = 19

b. 1
2n - 3 = 5

Answers

Answer:

y=4

Step-by-step explanation:

4y+3=19

=4y=19-3

=y=16/4=4

Answer:

a) y = 4

b) n = 4

Step-by-step explanation:

a) 4y + 3 = 19

Subtract 3 from both sides.

4y = 16

Divide both sides by 4.

y = 4

b) Is the 1 apart of the equation? If not, these are the steps to find n.

2n - 3 = 5

Add 3 to both sides.

2n = 8

Divide both sides by 2.

n = 4

WILL GIVE BRAINLIEST!!! A rectangular field has an area of 4200 feet. Let the length of the field be (x+2) and the width be (x-3). Find the length and width of the field by writing a quadratic equation and solving using completing the square.

Answers

Equation: 2(x+2)(x-3)=4200

(x+2)(x-3)=4209

this is the equation because area is base x height. so those two sides being multiplied will give you 4209. so when you solve those two problems you will then multiply them and get 4209

5 1/4 divided by 2 3/8

Answers

Answer:

[tex]\frac{42}{19}[/tex] or [tex]2 \frac{4}{19}[/tex]

Step-by-step explanation:

5 1/4 divided by 2 3/8 basically means [tex]5 \frac{1}{4}[/tex] ÷ [tex]2\frac{3}{8}[/tex]. Reduce the expression by cancelling the common factors.

14 hope this helps. I’m sure I’m right

I need help on this question

Answers

Answer:

300+90+9

-45=0+40+5

Step-by-step explanation:

399-45=354

300 plus 90 for the top and 45 for the bottom

You have been reflecting about your relationship with math. How can thinking about yourself as a learner help you become a better student?

Answers

It allows students to see the importance of their own learning process. Process Recognition: Students can identify what they did well, what they failed at, what they need to change.

start fresh in the new school year and go to extra help

Any answers that are not whole numbers should be entered as a decimal rounded to the nearest tenth.

The kinetic energy of an object can be found using the following formula, where m is the mass of the object, v is the velocity, and K is the kinetic energy in units called joules.

A pushcart with a mass of 6 kilograms is moving at a velocity of 3 meters per second. The kinetic energy of the pushcart is ------

joules.

A wagon with a mass of 10 kilograms is moving at a velocity of 2 meters per second. The kinetic energy of the wagon is --------

joules.

Answers

I’m sorry but I don’t understand I need a picture

Aqua Town charges $6.00 admission plus $1.00 for each ride. The cost at Wet World is $3.00 admission plus $2.00 per ride.

a) Let x represent the number of rides. Write an equation for each park to show the relationship between the total cost (y) and the number of rides (x).

Aqua Town's equation:

Wet World's expression:

Answers

Answer:

Aqua Town's equation: $7.00

Wet World's expression: $5.00

Step-by-step explanation:

Aqua Town charges $6.00 admission plus $1.00 for each ride. = $6 + $1 = $7.00 (I add the zero in the number) The cost at Wet World is $3.00 admission plus $2.00 per ride. SLOVE = $3 + $2 = $5.00 (I add the zero back again) \

HOPEFULLY I AM RIGHT, HOPE THIS HELPS :)

What is the value of K ?

Answers

[tex] k + 60° = 180° [/tex] (linear pair)

⇒ [tex] k = 180° - 60° [/tex]

⇒ [tex] k = 120° [/tex].

Answer:

Step-by-step explanation:

k= 180-69

k= 120 degrees

Can someone please help me with this

Answers

Answer:

10) C

11) A

Step-by-step explanation:

Answer:

1. (3,5)

2. B

Not sure for the second one but try it

GIVING Brainly TO CORRECT Answer
Raquel’s favorite basketball player scored 25, 17, 38, 11, and 24 points during her games. What is the mean number of points the player scored?

23

24

27

38

Answers

Answer:

Step-by-step explanation:

25 + 17 + 38 + 11 + 24 = 115 / 5 = 23

Answer:

Step-by-step explanation:

23 + 24 + 27 + 38 = 112

112 ÷ 4 (total numbers) = 28

Mean = 28

(Middle school math) please help, just for letter a. Thank you.

Answers

Answer:

She can wear the blue pair with all three shirts and jackets

She can wear the black pair with all three shirts and jackets

She can wear the brown pair with all three shirts and jackets

Sorry if it is wrong

She can wear the blue pair with all three shirts a and jackets

For every 100 teens surveyed, 8 said they worked at a grocery store last summer.

A True
B False

Answers

i’m gonna have. to go wit true. please mark me brainliest if i’m right

Answer: False, if the number has a percent symbol, it doesn't mean that that is the number of people that did the job. :)

The diagram represents a right rectangular prism with dimensions labeled as algebraic expressions.
Which of these expressions represents the volume of the prism?

Select all that apply. *Choose 3*

Answers

Answer:

3rd Option

Step-by-step explanation:

Volume = (2x-5)*(2x+5)*3x

Volume = (4x^2 + 10x - 10x -25)*3x

Volume = 12x^3 +30x^2 -30x^2 - 75x

Volume = 12x^3 - 75x

The expressions represent the volume of the prism is

V = 12x^2 - 75x

The volume of a rectangular prism

The formula for calculating the volume of rectangular prism is expressed as:

V = lwh

l is the length

w is the width

h is the height

Given the following

l = 2x + 5

w = 2x - 5

h = 3x

V = 3x(2x+5)(2x-5)

V = 3x(4x^2 - 25)

V = 12x^2 - 75x

Hence the expressions represent the volume of the prism is

V = 12x^2 - 75x

Learn more on volume of prism here; https://brainly.com/question/23963432

please help will get brainliest and 10 points if correct

Answers

Answer:

I think the answer is 18 because 20+18=38 and 7x2= 14

Then you would multiply 38 x 2to get 76

14 + 76 = 90

Step-by-step explanation:

The correct answer is 20. This is because a supplementary angle is shown, so we can use 7x+(x+20)=180 to solve. You can see my work below.

I hope this helps <3

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