Mathematics Middle School

2) Thomas wants to find the difference
1/2 (6x - 2) - (2x + 1)

He does the following:

1/2 (6x - 2) - (2x + 1)
3x - 1 - x + 1/2 =
3x + x - 1 + 1/2 =
4x - 1/2

Is this correct? If not, show the correct procedure and explain where Thomas made his mistake.​

Answers

Answer 1
He is not correct, his mistake was multiplying 1/2 to 2x and 1, when you should have multiplied the negative to them.
Answer 2

Answer:

Thomas is not correct, x-2 is the correct answer

Step-by-step explanation:

Thomas made his mistake by multiplying the 1/2 by both (6x-2) and -(2x+1). Thomas should have multiplied the 1/2 by just the (6x-2).

Correct procedure:

1/2 (6x-2)-(2x+1)

(3x-1)-(2x+1)

3x-1-2x-1

x-2

Related Questions

Jesse says that the expressions 762x + 9) and 14x + 9 are equivalent
Do you agree with Jesse? Explain

Answers

Answer:

Jesse is an idiot

Step-by-step explanation:

762x does not equal 14x

Answer:

no because 762x is not equal to 14x

Step-by-step explanation:

Andrew works at a local pizza shop. The amount of money he makes is based on the number of hours he works. Which of the following represents the independent variable?


A the amount of pizzas Andrew makes while he is working


B the amount of money Andrew makes


C the amount of hours Andrew works


D the time it takes Andrew to travel to work

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I feel like the answer its letter b or c

Step-by-step explanation:

because we dont know how much he makes or how many hours he works..

I would say it’s probably c

BRO CAN SOMEONE PLEASE HELP ME

Answers

Answer:

1st is 30 and 16. 2nd is reduction. 3rd is scale factor of 2/3

Step-by-step explanation:

#1 you dilate by a scale factor of 2 so you just multiply all the sides by 2 to get your answer. 15x2=30 and 8x2= 16.

#2 it is a reduction because m', s', and v' are smaller then m, s, and v

#3 the scale factor is 2/3 because you do the image over the pre-image so -2,2 / -3,3 is 2/3 same is 4,2 / 6,3 and 2,-2 / 3, -3

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

An image of a rocket is shown. The rocket is made up of a triangle, a rectangle, and a trapezoid. The triangle at the top of the rocket has a base of length 3 inches and a height of 4 inches. The rectangle in the middle of the rocket has a height of 10 inches and a length of 3 inches. The trapezoid at the bottom of the rocket has one base of length 3 inches at the top, another base of length 5 inches at the bottom, and a height of 2 inches.

Use familiar figures to find the area of the figure shown. Show all work

Answers

Answer

the area of the entire rocket is  44

area of the triangle=6

area of the rectangle=30

area of the trapezoid=8

Step-by-step explanation:

triangle= bxh/2 so 4x3= 12/2= 6

rectangle= bxh so 3x10=30

trapizoid= A=a+b2h so 3+5= 8/2= 4x2= 8

6+30+8=44

What is the equation of the line that passes through the point (-3, 4) and has a
slope of 1/3?

Answers

Answer:

the equation is y= 1/3x+5

The equation of the line is y=3x+1.

This table shows a linear relationship. x: 6 12 18 24 30 y: 252 504 756 1008 1260 Based on the information in this table, which equation can be used to model the relationship between x and y​

Answers

Answer:

The difference between value of y at x=11 is 385, the correct option is third.

Step-by-step explanation:

The difference between value of y at x=11 is 385, the correct option is third.

The equation of a line which passing through two points is given below,

The two points from the table are (3,240) and (4,320), the equation is,

Put x=11

Therefore according to the table the value of y is 880 at x=11.

The two points from the table are (2,90) and (4,180), the equation is,

Put x=11,

Therefore according to the table the value of y is 495 at x=11.

The difference between the values of y at x=11 is,

Therefore third option is correct.

Answer these 3 pleaseeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

a answer is given below

3(18-7)+2

3×11+2

33+2

35

b answer is given:

7a-3b

7×4-3×3

28-9

19

c answer is given:

4/5x+7.2

60/5

22+7.2

19.2

Answer:

4 35

5 19

6 19.2

Step-by-step explanation:

im not positive on number 6

1/4 more than 1650?

PLEASE!

GIVE BRAINIEST!!

Answers

Answer:

1650+1/4 = 1650 1/4 or 1650.25

Step-by-step explanation:

Answer:

2062.5

Step-by-step explanation:

The easiest way to solve this is 1650 divided by 4 which =412.5

Then you do 1650+ 412.5

hope this helps:)

Shannon states that 7 5/8 - 5 1/3 = 2 4/5 because 7 - 5 = 2, 5- 1 = 4, and 8 - 3 = 5. First, state whether you agree or disagree. Then, explain briefly how to subtract mixed numbers with unlike denominators. Be sure to show your solution as a subtraction equation.​

Answers

Answer:

Disagree. Actual answer:

Step-by-step explanation:

The answer to the question is in the image below. If you want to subtract mixed numbers with unlike denominators, you need to check the greatest common denominator between all of them.

Read the sentences from a student’s essay about "The Treasure of Lemon Brown.”

In the beginning of the story, Greg is focused on playing basketball for the Scorpions. His father wants him to study harder and lectures him about the importance of doing well in school.

Which transition should be added between the sentences to improve the flow of ideas?

Still
However
Thus
Second

Answers

However because you can use however as “but”
I would say earlier ‘Thus’ or ‘However’, but there are more instances where you could use ‘However’ so let’s go with however,

Can you help this is due in 5 minuets please ill give brainliest!

Answers

Answer: first one 4230

Step-by-step explanation: that's all I can help u with sorry and hope it helps =)

The third one might be Volume

expand (6y-2y+5y)9 and factor 80-10y. I will give brainliest

Answers

(6y-2y+5y)9

= 54y-18y+45y

80-10y

=10(8-y)

Answer:

45y-18y+54y & 10(8-y)

Step-by-step explanation:

For the first problem, you need to distribute the 9 to the 5y, -2y, and the 6y

If you do this and multiply the 9 by each of the terms you get:

45y-18y+54y

Now we can work on the second problem

When factoring, we have to find a common factor.

In this expression, the common factor is 10 because both 80 and 10 are divisible by 10!

So we but the 10 on the outside of the parentheses and divide 80 and 10 by 10 which gets us an answer of:

10(8-y)

If you were to distribute this, you would get 80-10y so we know it is correct

Hope this helps, have a great day, and please award brainliest!

Please help quick quick

Answers

Answer:

you would distribute the 10 to the 2 so 20x + 80y - 60

Step-by-step explanation:

you distribute the 10 to each of the numbers

Answer:

20x+80y-60

Step-by-step explanation:

You times ten to everything because it is outside the parentheses.

plsssssssssss helppppppppppppppppppppppppppp

Answers

Answer:

1.5

Step-by-step explanation:

x=18.50 , y = 17

18.50-17 = 1.50

2. 23

3. Equation

4. d= 12.25/1.75

   d = 7

for the first two answers for the first picture it's: for kit, it's x = 18.5 and y = 17 for Sadie.

for the second picture, it's 23.

for the third picture its equal sign

and for the last one It's 7

The absolute value
of 2 is -2.

Answers

Answer:

False

Step-by-step explanation:

Absolute value is not just flipping to the opposite sign. Absolute value is a distance, so it is always positive.

|2| = 2

|-2| = 2

The diagram shows three triangles. Describe the translation that takes triangle A to triangle B.

Answers

Answer:

B

Step-by-step explanation:

BxA=C so the answer 8s C thank you

Answer:

2 over

3 down

Step-by-step explanation:

you start at a point on triangle A and go over 2 to the point it is hovering over on point B.

you start on any point on triangle A and move down 3 to the point it is.

What is the area of rectangle PQRS?

Answers

D because length times width
d
you multiple the length/height x the width
to find the width u add 4.5+3+2
and the length/height is given

Matt scored 5 runs in each of the 3 baseball games that he had this week. How many runs did Matt score this week?

3
5
13
15

Answers

15 because he scores 5 runs I n each of the 3 games he played so you do 5x3=15.

Please help me and you will get brainliest if it is correct! Please and thank you

Answers

Answer:

B

Step-by-step explanation:

Took the test also A=2πrh+2πr2=2·π·15·295+2·π·152

Answer:

D

Step-by-step explanation:

solve each inequality below. Graph the solution on a number line
14<2(x+3)

Answers

The answer is given in the picture.

Rosalie earns extra money by working as a babysitter over the weekend. She charges $10 to drive to the home and an additional $8 per hour.

Answers

18$ I am guess ing an hope you are well and finished your work
Let the input be x where x is the number of hours Rosalie works as a babysitter.
Total earning =10 + 8x

help ill give brainliest

Answers

Answer:

B

Step-by-step explanation:

the size and shape of the firgure is not changed, just the location

B, is your answer because the shape does not move, only the location.

Suppose that an individual has a body fat percentage 18.5% of and weighs 136 pounds. How many pounds of her weight is made up of fat? Round your answer to the nearest tenth.

Answers

Answer:

8

Step-by-step explanation:

136/18.5=7.35135135135 but rounding 8

PLEASE MARK ME AS BRAINLIEST

This goes with the other questions lols i didnt know there were 6

Answers

Firstly, we need to distribute 1/4 to (8z + 16). This gives us 2z + 4 - 7z. We can combine like terms. We now have -5z + 4.

The answer is -5z + 4.

How do you solve -3 1/3=-1/2g

Answers

Answer:

1.66

Step-by-step explanation:

Make it and improper fraction: -10/3

put this over a fraction

-10/3

-1/2

It has to be positive because on two negatives

Make them have the same denominators

-20/6

-3/6

Then divide

You get 1.66

Answer:

-10/3 = -1/2g

20g=3

g=0.1

I’m about to give 20 points per each question answered correctly, I’m gonna ask 10, check my page

Answers

Answer:

Ok, so where are the questions at so I can answer them?

Step-by-step explanation:

please helppppppppppp

Answers

13 - No

7 - No

74 - No

10 - Yes

u + 32 = 42

u + 32 - 32 = 42 - 32

u = 10

The left side 42  is equal to the right side 42, which means that the given statement is always true

13-no
7-no
74-no
10- yes because the difference of 42 and 32 is 10

please do for brainlist and thank you

Answers

Answer:

A

Step-by-step explanation:

I think it would be A

Answer: bottom left option (7/12, 6/8, 4/5)

Explanation: Convert all of them into decimals to make it easier - 0.583, 0.75, 0.8. That one is correct because it is least to greatest.

write an equation in point-slope form of the line that passes through the point (2,0) with slope 1. 40 POINTS

Answers

Answer:y = 1x + 2

Step-by-step explanation:

Brainlyest? i need it for next rank

Please Help with the Part A and B. I need it really badly... I will give 10 points, please!!

Part A will be the picture that is attached.

This is Part B:

For how many family members will the cost of the zoo membership be the same?
Enter the correct answer in the box.

Answers

Answer:

Part A: x=3 y=75

explain part B a little more

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

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