Mathematics Middle School

please help me, thank you

Please Help Me, Thank You

Answers

Answer 1

Answer:

-19.59

Step-by-step explanation:

can I please have brainliest? :)

Answer 2

Answer:

-19.59

Step-by-step explanation:

Something I use when I need help on math is Desmos (Just type in Desmos in the search bar)

Related Questions

which of these would be a helpful first step in solving the equation? check all that apply. 7x - 9 = 2x + 21

Answers

Answer: E. Subtract 2x

Step-by-step explanation:

Subtracting 2x would remove a bit from both equations, giving us 5x - 9 = 12. This would make it easier now that we only have one number on a side.

Hope this helps!

Subtract 2x because you need to get the x value on one side and number on the other

Monday- Simple probability

Use the image above to answer the following questions. Find each Probability and write your answer as a FRACTION, DECIMAL and PERCENT.
P(B)

P(Q or R)

P(Vowel)

P(T)

Answers

Hey!! Just wanted to let you know that there’s not a picture!! Please make sure this comment doesn’t earn me points, as I hate when poeple comment stuff like this and get points!!

Write the equation of the line in slope-intercept form using y=mx+b​

Answers

Answer:

y=x-400

Step-by-step explanation:

I have no clue I’m dum plus it’s 400

What is 2.75 years in months?

Answers

Answer:

About 33.

Step-by-step explanation:

In 1 year, there are 12 months. We have 2 years here, so we do 12x2, which is 24. We also have .75.

Well, .5 (half) of the year would be 6. A quarter of the year would be 3.

.75 is equal to 3 quarters, so we do 3x3, getting 9.  

24+9=33

pls help on this i cant do it

Answers

Answer:

y=2x-1

Step-by-step explanation:

y=mx+b

insert Point (0,-1)

-1 = m * 0 + b

-1 = b

slope:

m = delta y / delta x

m = 2 / 1

m = 2

Y=2x-1 is the correct answer

What is the Mean Absolute Deviation of the following set of numbers?


16, 21, 17, 22, 16, 16


A) 2.15 B) 2.28 C) 2.33 D) 2.47

Answers

Answer:

B 2.28

Step-by-step explanation:

please mark brainliest answer so i can rank up

C is the correct answer I checked it on my calculator

Amazon Prime has movies on sale. If yoi just paid $5 for a movie that originally cost $12, what was the percent discount?

Answers

Answer:

Discount Percent = 58.33 %

Discount Amount = $ 7.00

Step-by-step explanation:

Answer:

41.66666667%

Step-by-step explanation:

____n/-6=-4____
__=___

SOLVE STEP 1 EQUATIONS

Answers

I’m not on that level yet I’m really sorry
-6+ +6 cancels out.
turn the integer positive.
-4+6=2
n=2

Other than light and sound, what energy is often present during a thunderstorm?

PLS HELP
THE SUBJECT IS SCIENCE.

Answers

When warm moist air meets colder drier air, the warm air rises, the water vapor condenses in the air, and forms a cloud. As the water vapor condenses it releases heat, which is a form of energy.

Answer:

Kinetic energy is present.

Step-by-step explanation:

It's present by the moving winds in the storm, and by the winds moving things such as trees, branches, or plants.

Graph the two equations on the line

Answers

Answer:

Check the attachment

Step-by-step explanation:

a 4000 pound car driving at 40 miles/hour has how many times the kinetic energy of another 4000 pound car driving at 10 miles/hour.

Answers

Answer = 400 I think
Explain = do 4,000 five by 40 then get a answer of 100 and then do 4,000 divid by 10 and get 400 do you see the similarities of both of these question they are the same question but just written in different ways just by adding a zero.

The comparison of the kinetic energy of the given bodies is required.

The first car has 16 times more the kinetic energy of the second car.

Kinetic energy

m = Mass of car = 4000 pound

[tex]v_1[/tex] = Initial velocity of car = 40 miles/hour

[tex]v_2[/tex] = Final velocity of car = 10 miles/hour

The mass of the car is constant so we have the relation

[tex]K\propto v^2[/tex]

Thus,

[tex]\dfrac{K_1}{K_2}=\dfrac{v_1^2}{v_2^2}\\\Rightarrow K_1=K_2\dfrac{40^2}{10^2}\\\Rightarrow K_1=16K_2[/tex]

Learn more about kinetic energy:

https://brainly.com/question/25959744

I need help and this is due at 11:59 please

Answers

Answer: The y-intercept (b) is 10.

Step-by-step explanation:

Use the slope and the point to help you. Plot the point (-3,4) on graphing paper or use geometry software. I use geometry software, it's easier.

You'll need to understand that the slope 2 can also be written as 2/1 (rise/run). Go up 2 units and go to the right 1 unit, then plot a point. Keep going until one of the points lies on the y-axis. The y-coordinate of that point is the y-intercept. So, the y-intercept (aka "b") is 10.

You're welcome, and I have a nice day! :D

Answer:

10.

Step-by-step explanation:

You are standing at the top of the mountain 1,500 feet above sea level and your brother is a scuba diving in the ocean 10 feet below sea level. Write an expression using absolute values to determine the difference between the 2 positions.

Answers

Answer:

To find the absolute value remove abt negative sign in front of a number and to think of all numbers as a positive

Step-by-step explanation:

The expression using absolute values to determine the difference between the two positions is → d = x + |y| , where : x = +1500 and y = -10.

What are expressions?

A mathematical expression is made up of terms (constants and variables) separated by mathematical operators

Given is that you are standing at the top of the mountain 1,500 feet above sea level and your brother is a scuba diving in the ocean 10 feet below sea level.

For 1500 feet above the sea level, we can write -

{x} = + 1500 ft

For 10 feet below the sea level, we can write -

{y} = - 10

Assume the difference between the two positions is equal to {d}. So, we can write -

d = x + |y|

d = 1500 + |- 10|

d = 1500 + 10

d = 1510 ft

Therefore, the expression using absolute values to determine the difference between the two positions is → d = x + |y| , where : x = +1500 and y = -10.

To solve more questions on expressions, visit the link below -

brainly.com/question/14591508

#SPJ2

Attachment Below: Pls help me!
1. How far (in miles) is the campsite from their car?
2. After how many hours will the hikers be 16 miles from their car?

Answers

Answer:

i dont know this one it hard

Step-by-step explanation:

When you go shopping, you love to purchase new shirts. In your closet you notice that 2/6 are red shirts, 2/4 are shirts blue, 4/5 are green shirts and 1/10 are yellow shirts. You choose a shirt without looking, what color shirt are you MOSTLY likely to choose?

A
green

B
red

C
yellow

D
blue

Answers

You are most likely to choose Blue
Blue is the correct answer

The mass of the blue copper sulfate crystal is two-thirds the mass of the red fluorite crystal. Write an equation you can use to find the mass m (in grams)of the blue copper sulfate crystal.

plz :(

Answers

It is 30 divided by 1/3 or 3. The answer is 10

What is the median of the data set? 6, 7, 11, 14, 20, 30, 35.
O A. O B. 14 O c. 6 O D. 35​

Answers

Answer:

simple you just need to,there are lot ways ok don't get hurry just listen answer is 35 done

Answer:

The median is 14

Answer correctly please and explain correctly

Answers

They will meet at 7:15
The correct answer is B

uhh please help 4 spring break hamwork math btwww

Answers

Answer:

60x + 42y

Step-by-step explanation:

6(10x + 7y)

Use distribute property and multiply 6 to everything inside the parenthesis:

6 x 10x = 60x

6 x 7y = 42y

SO, 60x + 42y is the correct answer

Answer:

60x + 42y

Step-by-step explanation:

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answers

it is equal to 2 1/2

Step-by-step explanation:

can I have brainlest plsss

Answer:

2 1/2

Step-by-step explanation:

only this the answer

There is an attachment below. Pls help me!

Answers

Answer:

square = 8

Step-by-step explanation:

x = square weight

4 + 2x = 3(4) + x

simplify:

4 + 2x = 12 + x

subtract 4 and x from each side of the equation:

x = 8

The answer is going to be eight

Help I need help right now pls someone and thanks

Answers

c because i took the test

Answer: The 3 answer

Step-by-step explanation:

Its just a feeling

Emma types one-third of a paper for History class in 34 hour. What part of the paper can she type in one hour?

Answers

Answer:

What part of the paper can she type in one hour. The hours cancel out, leaving us with: 1/3 x 4/3 paper/hour Multiplying the numerators and denominators, we get: 4/9 paper/hour So Emma can type 4/9 of a paper in one hour.

Thank you for submitting!

No links, no I dont knows, math home work review sheet 2


please atleast try to awnser 2-3

Answers

(7) The fourth digit is 3. (8) The answer is C. (10) The answer is D.
7- 3 8- c 9- D hopefully you get them correct

Approximately 52 percent of all recent births were boys. In a simple random sample of 100 recent births, 49 were boys and 51 were girls. The most likely explanation for the difference between the observed results and the expected results in this case is

Answers

Variability due to sampling

I need help i will give brainliest and 20 pts. thanks

Answers

Answer:A

Step-by-step explanation:

Markers make up what percent of the school supply inventory?

Answers

Answer:

Markers make up 15% of the inventory.

Step-by-step explanation:

There are 60 total items and 9 of them are markers. 9 is 15% of 60

15% is what the markers make of school supplies

Please help and explain I need this done pronto!!!

Answers

Answer:

1.) Mean= 136

Median=133

2.) Mean=136

Median=133

Answer: Landers

Mean = 136

Median = 133

Skakalski

Mean = 130

Median = 133

Step-by-step explanation: to find the mean add all the numbers then divide it by how many numbers there are.

To find the median write all the numbers from smallest to largest then cancel the number at the end until you reach the “middle” number.

Please help me!!! brainy to whoever answer correctly!!!

Answers

Answer:

(12, 0) & (3, -1) & (0, -3/4)

Step-by-step explanation:

x - 9y = 12

Plug in the point and solve:

12 - 9(0) = 12

12 = 12

3 - 9(-1) = 12

3 + 9 = 12

12 = 12

0 - 9(-3/4) = 12

12 = 12

Answer:

(12,0), (3,-1), and (0,-4/3)

Step-by-step explanation:

Just replace x and y in the equation with the coordinates.

12-9(0)=12

solve to see if it is true. First solve 9(0) which is 0. Which leaves us with        12-0=12 and this is true because it fits.

Now with (3,-1)

3-9(-1)=12

Solve to see if true. First solve 9(-1) which is -9. this leaves us with 3-(-9)=12

3-(-9) does equal 12 so this one is true as well.

Same thing with (0,-4/3)

Which sample size of a population of 200 is most likely to give a reliable conclusion?

30
10
50
80

Answers

Answer:

In my opinion 50

Step-by-step explanation:

80??! sorry if i’m wrong:(!
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