Mathematics Middle School

Alice solved the following equation:


-18 - 3x = 12

-3x = 6

x =-2


Which of the following statements is true?


(A) Alice is correct.

(B) The 6 should be 30 in step two.

(C) The 6 should be -6 in step two.

(D) The 6 should be -4 in step two.

Answers

Answer 1

Answer:

B

Step-by-step explanation:

-18 - 3x =12

-3x =12 +18(step two 30)

-3x=30

x=-30 :3

x=-10

Answer right B) it should be 30 in step two

Answer 2

Answer:

the 6 should be 30 in step two

Related Questions

Which expressions are equivalent to 10a - 25+ 5b

Answers

what are the choices?

Answer:

(2a-5+b)5                   10 times(a-2.5+0.5b)              (-2a+5-b)times(-5)

Step-by-step

That should be all of the answers hope it helps

what is the answer to 4(x - 5) = 44

Answers

Answer:

x = 16

Step-by-step explanation:

Step 1: Write equation

4(x - 5) = 44

Step 2: Solve for x

Distribute 4: 4x - 20 = 44

Add 20 on both sides: 4x = 64

Divide 4 on both sides: x = 16

Step 3: Check

Plug in x to verify it's a solution.

4(16 - 5) = 44

4(11) = 44

44 = 44

X=16 I hope this helps

Answer the questions I will give brainliest !!!! Asappppppppp wait this world cultures!!

Answers

Answer:

Cuzco, Peru. Don't really have a description for it.

I guess they started their empire through the military strength of their emperors.

Step-by-step explanation:

Answer: Hope this helps!

Step-by-step explanation:

The Inca lived in Andes Mountains, which were rugged terrain.

The Inca became an Empire because of their emperors, and their military strength.

A submarine is descending to examine the seafloor 2,100 feet below the surface. It takes the submarine 2 hours to make this descent. Write an equation to represent the relationship between the submarine's elevation and time.
Another submarine’s descent can be represented as y=-240x, where y is the elevation and x is time in hours. How long will it take this submarine to make the descent?

Answers

Answer:

-1050

Step-by-step explanation:

I know the answer because descending means going down so 2100 is the big number and its negative to if you do -2100 divided by 2 then you will get -1050.

It would take the submarine 8.75 hours to make the descent of 2100 feet.

Linear equation

A linear equation is in the form:

y = mx + b

where m is the rate of change, y, x are variables, and b is the y intercept.

Let y represent the level of the submarine after x hours.

It takes the submarine 2 hours to make a descent of 2100 feet, hence:

y = mx

-2100 = 2m

m = -1050

y = -1050x

Given the equation y = -240x, for 2100 feet descent:

-2100 = -240x

x = 8.75 hours

It would take the submarine 8.75 hours to make the descent of 2100 feet.

Find out more on Linear equation at: https://brainly.com/question/13763238

Working together, 6 friends pick 1513 bags of apples at an orchard. They divide the bags of apples equally between them. How many bags does each friend get?

Answers

Answer:

252.16666667 or 252

Step-by-step explanation:

1513/6

Each friend gets 252 bags of apples

who has a test today

Answers

Answer:

i have a test EVERY day

Step-by-step explanation:

Do you have an actual question?

Answer:

well i have a test everyday

Step-by-step explanation:

do u need help with anything?

Solve for y and graph the equation?

Answers

This is a negative slope and it goes by 3 and 1.5 I hope this helps a little bit
i’m not sure tbh hhh

What is the sale price of a shirt that was originally $25 but that has been marked down by 33 percent

Answers

Answer:

8$ dollars

because you subtract 25 by 33 and get 8

Answer:

16.75

Step-by-step explanation:

Lin and her brother each created a scale drawing of their backyard, but at different scales. Lin used a scale of 1 inch to 1 foot. Her brother used a scale of 1 inch to 1 yard.



Express the Lin's scale for the drawings without units.

Type your answer in the format:

3:4

with no spaces.

Express Lin's brother's scale for the drawings without units. Type your answer in the : 3:4 with no spaces

Answers

Answer:

the answer is 1 to 12

Step-by-step explanation:

Answer
1-12
Step-by-step expiation

EASY QUESTION FOR 20 POINTS! HELPPP !

Answers

Answer: divided by 2

Step-by-step explanation:

Step-by-step explanation:

numbers at the block's side multiple by two.Or numbers at the minute's side divide by two.

what is the answer to 3(x-20)=15

Answers

Answer:25

Step-by-step explanation:15÷3=5 5+20=25

answer: x=25

explanation: 3(x-20)=15
3x-60=15
+60 +60
3x=75
divide by 3 on both sides
x=25

Solve, show your work. Solve 5x + 4 = 14x - 14

Answers

Answer:

x=2

Step-by-step explanation:

If x is 2, then 5x+4 is 14, because 10+4 is 14. Also, 14x-14 would be 14 because 28-14 is 14. Both sides equal eachother.

Answer:  x = 2

Step-by-step explanation:

Pull out like factors :

  -9x + 18  =   -9 • (x - 2)

Solve :    -9   =  0

Solve  :    x-2 = 0  

Add  2  to both sides of the equation :  

                     x = 2

I HOPE THIS HELPS YOU! :)

help please questions are in the picture

Answers

Question 2:
Answer G
Because (8 1/4)*(-14.5)
= -119 5/8

Joanna wants to buy a $35 pair of jeans
and as many $20 sweaters as her budget will allow. Her
bill cannot be more than $200. Which inequality could
Joanna use to calculate how many sweaters (s) she will
be able to purchase on her budget?

Answers

Answer: It is C

Step-by-step explanation:

The options were D & C because they were less than 200. Then you have to look at the 20. If the 20 has the (s) like stated, then that means it is your answer. The (s) stands for sweaters.

Answer is C because B and D don’t have a variable in them and it isn’t A because the sign says she can spend more than or equal to 200 and that’s not correct

Use long division to convert the rational number to its equivalent decimal form. Upload a document showing all your work. 5/8

Answers

The answer to your question would be 1.600

Answer:

1.600

Step-by-step explanation:

Billy cuts 25 -inch sections of wood to make a birdhouse roof. He cut 37 sections. How many inches did he cut?

Answers

25 inches is alot....

ummmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

Answers

Answer:

7789237 is greater

Step-by-step explanation:

7,789,237 is greater

The point R is halfway between the integers on the number line below and represents the number ____. (Use the hyphen for negative numbers and write the answer as a decimal, such as -6.4).

Answer for Blank 1:The point R is halfway between the integers on the number line below and represents the number ____. (Use the hyphen for negative numbers and write the answer as a decimal, such as -6.4).

Answers

Answer:

-5.5

Step-by-step explanation:

This is hard so i put more points and uhm this is stupid -w-

Answers

Answer: To find the mean of a data set, add all the numbers together, then divide the answer by how many numbers there were

Step-by-step explanation:

Example: 1,5,2,6,9,4

First add them all so 1 + 5 + 2 + 6 + 9 + 4 = 27

Then divide by how many numbers there were so 27/6=4.5

4.5 is the mean of the data set

How fast will a car move if it was going 30 m/s and then accelerated at 3 m/s/s for 21 seconds

Answers

Answer:

meters and t is in seconds. ... of 3 m/s South After 6 seconds, its velocity will be: ... The diagram shows a velocity-time graph for a car moving in a straight line. ... (E) When velocity and acceleration are both constant. 21. The following graph is a position ... 260 m/s" for 20ms, then travels at a constand velocity for another 30ms.

Step-by-step explanation:

The correct answer is 93 m/s. Have a great day

Fill in the blanks to make each equation true.

Answers

Answer: all true

Step-by-step explanation:

Look at the picture closely ull see it

The answer is that all of them are true

Calvin and his 6 siblings hate to take out the trash. They decide to randomly choose which of them has to take the trash out each day. Which of the following strategies could they use to ensure that every person has an equal chance of being picked? Choose all that apply.

A.
Write each person’s name on a note card, shuffle the deck, and have their mom pick one.

B.
Assign each person a number and roll a 6-sided number cube.


C.
Put 20 cubes into a bag, 4 cubes each of 5 different colors. Assign each sibling a color and select one cube

D.
Use a spinner with 14 sections where every person’s name is on 2 sections.


E.
Assign the three youngest siblings as “heads” and the four oldest siblings as “tails” and flip a fair coin.

Answers

Answer

a and b

Step-by-step explanation:

whats the answer to 3u+4=7

Answers

Answer:

u=1

Step-by-step explanation:

Answer

U=1

Step-by-step explanation:

3x1+4=7

3x1=3+4=7

What is the equation of the line that passes through the point (-8,-7)(−8,−7) and has a slope of 11? plz answer now

Answers

Answer:

[see below]

Step-by-step explanation:

We are given a point of (-8,-7) and a slope of 11.

I made a point slope form equation and converted it into slope intercept form.

[tex]y+7=11(x+8)\\\\y+7=11x+88\\\\y+7-7=11x+88-7\\\\y=11x+81[/tex]

Hope this helps.

help please. due soon​

Answers

Answer:

5.89

Step-by-step explanation:

29.45 divided by 5

A package of 5 pairs of insulated gloves cost $29.45. What is the cost of single pair of gloves? One pair of gloves costs $5.89

Frankie is on a long car trip. Every time she stops to buy gas, she loses 15 minutes of travel time. If she has to stop 6 times, how late will she be getting to her destination?

Plz be specific, thank you

Answers

Answer: She will loose 75 min. (1 hour and 15 minutes)

Step-by-step explanation:

15x6=90

90 minutes or 1hr 30

168 ounces
14 boxes

How much does the spaghetti in each box weigh? Find the unit rate.

Answers

Each box weighs 12 ounces because 168 divided by 14=12

Answer:

12 units per box

Step-by-step explanation:

168 divided by 14 = 12

Which of the following is the solution to 17 - 2x = -11?

(A) -14
(B) -3
(C) 3
(D) 14

Answers

Answer:

(D)14

Step-by-step explanation:

17-2x=-11

17+11=2x

28=2x

28/2=2x/2

14=x

x=14

(D)14
17-2x=-11
-2x=-11-17
-2x=-28
X=14

pls help with explanation
its 2 questions

Solve of x.

x/3 + 14 = 35

and

Solve of x.

-9x - 13 = -103

Answers

the first answer is x=63
the second one is x=10
1st = x = 63
2nd = x = 10

Plz help giving brainlist for best answer

Answers

Answer:

1=proper fraction

2=mixed number

3=equivalent fraction

4=improper fraction

5= denominator

6= numerator

I honestly don’t know chile- lol ok bye
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