Mathematics Middle School

The work of a student to find the dimensions of a rectangle of area 6 + 8x and width 2 is shown below: Step 1: 6 + 8x Step 2: 2(4) + 2(6x) Step 3: 2(4 + 6x) Step 4: Dimensions of the rectangle are 2 and 4 + 6x In which step did the student first make an error and what is the correct step? (1 point) Question 14 options: 1) Step 3; 2 + (4 + 6x) 2) Step 3; 2 + (4 ⋅ 6x) 3) Step 2; 2(4) + 2(4x) 4) Step 2; 2(3) + 2(4x)

Answers

Answer 1

Step-by-step explanation:

Hello,A=IxwStep 1:6+8xStep 2:2(3)+2(4x)Step 3:2(3+4x)Step 4:The dimension of the rectangle are 2 and 3+4x. As a result, Students makes the mistake at Step 2; 2(3)+2(4x). Hope it help!
Answer 2

Answer: (4)

Step-by-step explanation:

At step 2 the student rewrites 6 as 2*(4), and 8x as 2*(6x). This is incireect, since 2*(4) is actually 8, and 2*(6x) is 12x.

The correct way to do it is to rewrite 6 as 2*(3), and rewrite 8x as 2*(4x), which corresponds to the answer option (4)

Related Questions

The original quantity is 10, the new quantity is 16. What is the percent increase?
WILL GIVE BRAINLIST !

Answers

Answer: The correct answer is 60%

Step-by-step explanation:

Because you start out with 10 and you increase to 16 and the increase would be 60%.

Answer:

60%

Step-by-step explanation:

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A coin is tossed 50 times. It lands on heads 30 times. Based on this outcome, how many times is the coin expected to land on heads if tossed 200 times?

A. 60
B. 80
C. 100
D. 120

Answers

Answer:

D: 120

Step-by-step explanation:

30/50 = 120/200

120 because if you divide 30 by 50 then it will equal to 0.6. And if you multiply 0.6 by 200 it will equal to 120.

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

2 rectangular prisms. One prism has a length of 16 centimeters, width of 6 centimeters, and height of 2 centimeters. The other prism has a length of 15 centimeters, width of 6 centimeters, and height of 30 centimeters.
A.) 2,700
B.) 2,712
C.) 2,892
D.) 3,072

Answers

The large cube is representing: 16*16*32= 8192cm

And the small cube is representing: 16*6*2= 72cm

length(cm) × width(cm) × height(cm) = cubic centimeters(cm³)

&

length(mm) × width(mm) × height(mm) ÷ 1000 = cubic centimeters(cm³)

So, answer would be 2,712.

Answer: B

WILL GIVE BRAINlest!!

Answers

Answer:

C. i think :)

Step-by-step explanation:

sorry if I'm wrong :(

hope it helps

I think it’s c hope this helped

Match the correct graph with the data provided above .

Answers

i dont know you can ask dn tho

HELPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

$528

Step-by-step explanation:

A. Calculating The Markdown Price

X=Markdown price

Original price: $600

Markdown rate: 20%

100%-20%=80%

The TV's price is now 80% of what it originally was.

[tex]\frac{x}{600} =\frac{80}{100\\}[/tex]

100x=48000

x=480

The price of the TV after being marked down is $480.

B. Calculating The Sales Tax

Y=Total sales tax

TV price: $480

Sales tax: 10% or 0.1

y=480*0.1

y=48

The total sales tax is $48

C. Calculating Your Total

x+y=total

480+48=total

total=528

You in total pay $528 for the TV.

Help!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The answer is C! A few are right but C is the best answer like it says
C IS THE BEST ANSWER HOPE IT HELPS!!

PLEASE HELP ANSWER ASAP NO LINKS PLZ

Answers

Answer:

X = 14

Step-by-step explanation:

For me, I did was add 12 and 16 which equals 28 then I divide it by the 2 sides and that how I got my answer

Hope it helps

Mk, i don’t know if this is hundred percent correct. Alright so, first add 12 and 16. Those two numbers equal 28. Every triangle equals 180, so if you subtract 28 from 180 that equals 156. The missing X is 156! Sorry if the explanation is kinda bad. My english isn’t very good. Also, if you need your answer to be rounded to the nearest tenth, it will be 160. Hope this helps!

Karon needs to choose between two gym plans. He can either pay a $150 joining fee and $10 per month, or he can pay a $50 joining fee and $30 per month.


PART A: Write a system of equations to model the situation.


Gym 1: C =


Gym 2: C =


PART B: Solve the system to determine on what month the costs of the plans will be equal.


The plans will be equal in ___ months and it will cost $___

Answers

Part A

Gym 1: C = 10x+150

Gym 2: C = 30x+50

Part B

The plans will be equal in 5 months and it will cost $200
The plans will be equal in 5 months and it will cost $200

Please help me with this. I haven't done a problem like this in forever and totally forgot how. Have an amazing day!!

Answers

Answer:

-100

Step-by-step explanation:

(6+4) × (-3-7)

(10) × (-10)

= -100

Answer:

-100

Step-by-step explanation:

do inside the parentheses first.

10 x -10 = -100

Lamar needs to read 5 novels each month.
Let 'N' be the number of novels Lamar needs to read in 'M months.

Write an equation relating 'N' to 'M'. Then use this equation to find the number of novels Lamar needs to read in 11 months.

Answers

n = 5(m)
the number of books = 5 books per month
n = 5(11)
n = 55

Which of the following inequalities defines the graph below?

Answers

X>-3 because the line stops on the x-axis at -3

Answer: x ≥ -3 because the line stops at the x coordinate -3, and the line is not dashed, so it means the x can be -3.

In which step does a mistake first occur?
8 ÷ 2 + (3 x 3 - 2)

Step 1. 8 ÷ 2 + (3 x 1)
Step 2. 8 ÷ 2 + 3
Step 3. 4 + 3
Step 4. 7

Answers

Answer:

step 1

Step-by-step explanation:

within the parentheses you multiply the threes together and then subtract the two, so (3×3-2) = (9-2) = (7)

NO LINKS OR I WILL REPORT
NEED ASAP
WILL MARK BRAINLIEST
AND NO UNESSECARY ANSWERS OR I WILL REPORT

Answers

Answer:

3. he would have saved 0.07 dollars per gallon

4. she used 2.5 meters per bow

3. He would have saved $1.26 if he went to the gas station across the street.

4.She used .4 of a ribbon for each bow.

5. It is a rate of $9 per pizza.

THESE R THE RIGHT ANSWERS! MARK THIS BRAINLIEST! HOPE THIS HELPED :)

Ill give brainlest again!!!!!!!!!!!!!!!

Answers

Answer:

40

Step-by-step explanation:

the range is the number between the highest and lowest number. the lowest in this is 5 and the highest is 45

45-5=40

An amusement park charges an admission fee of 30 dollars for each person.
Let 'C' be the cost (in dollars) of admission for 'P' people.

Write an equation relating 'C' to 'P'. Then use this equation to find the cost of admission for 11 people.

Equation:______
Cost for 11 people: _______

Answers

equation: C x P = total     or    30p = total

cost for 11 people: $330

Answer:

y=30p

330

Step-by-step explanation:

30 dollars per person so just multiply by 11 people

How do you solve this problem?

Answers

Answer:

21. r; 2.83 d; 5.66

22. d; 13.4 c; 42.09

23. r; 5.3 c; 33.30

24. r; 0.49 d; 0.99

Step-by-step explanation:

Hope this helps ;)

Answer:

21) r; 2.83 d; 5.66     22) d; 13.4 c; 42.09

23) r; 5.3 c; 33.30     24) r; 0.49 d; 0.99

Step-by-step explanation:

it says someone just answered while i was typing so hopefully this is right

You have $4000 to enclose a rectangular piece of property with a fence. The fence costs $11 per foot. A scale drawing of the property has a length of 9 inches and a width of 7 inches. The scale is 1 in. : 12 ft. How much will it cost to enclose the property with the fence? Do you have enough money?

Answers

The scale perimeter would be 32 inches, so the actual perimeter 32x12=384 ft. Since each foot costs $11, the total cost would be 11x384= $4224, which is over your budget so you do not have enough money to build the fence.
You won’t have enough money

How do you solve this problem?

Answers

Answer:

You solve this problem

Step-by-step explanation:

Fire and sun light

I need help, save me from this nightmare of a content that I need to question

Answers

Answer:

ok what is it

Step-by-step explanation:

Answer:

I'm confused

Step-by-step explanation:

but okayyyy

Please help me. I will give brainliest

Answers

Answer:

[tex]0 \leqslant f(x) < \infty [/tex]

Add 5 2/7+ 19 1/3+ 14 1/8= . Simplify the answer and write as a reduced mixed number.

Answers

I think that it it is 38

Help please! Also don't comment if you don't know or you claim you'll 'send me the link'

Answers

Hey, I worked out the answer for your last problem but Brainly wouldn’t let me comment so I’m leaving it here. Here it is:

NEED HELP FAST
NO LINK ANSWERS!!!

Which graph best represents the solution to the following pair of equations? (1 point)
y=-x-5
y=2x+4

Answers

Okay the side on the left side
i only see one answer choice but it’s not that one, your graph should look like this hope it helps :)

Please help! Thank you!!

Answers

Answer:

108

Step-by-step explanation:

So, to start, we can calculate the fuel used in March by using the following equation:

(40x240)/100

Which is 96. So the furnace burned 96 gallons of fuel in March and was left with 144 gallons. Now we need to find out how much of its remaining fuel it burned in April, so we use this:

(25x144)/100

Which is 36. So it burned another 36 gallons of fuel in April, leaving it with 108 gallons still in the tank.

Answer: i think is 108 i hope this help sorry.....

Step-by-step explanation:

NEEDED ASAP the dropdown menu is the same for the rest of the (select) boxes

Answers

Answer:

corresponding

alternate interior

vertical

same-side interior

vertical

corresponding

vertical

Step-by-step explanation:

those are all in order from top to bottom :)

"HOT PIZZA" is offering a 20% discount on all its pizzas. Tim orders a pizza for the reduced price of £7.20

What was the original price of the pizza?

NO LINKS PLEASE ​

Answers

Answer: 12.96

Step-by-step explanation: 20% is it's discount, so 80% you still need to pay. So, you multiply .80*7.20 to get 5.76. Then you add 5.76+7.20 which is 12.96.

Solve 7 through 13. No Links. Show your work. Pls, answer Asap.

Answers

the answer is 5y
explain:

When Amelia started painting, the paint can had 7/8 gallon in it. She used 3/8 gallon. How much paint is left in the can? (I'll try to give brainliest)

Answers

4/8 is left in the can

Answer:

4/0 gallon

Step-by-step explanation:

Can someone please help I asked earlier but no one is answering!

Answers

Answer:

a) 4x+6

b) 28

Step-by-step explanation:

The perimeter is equal to 1+x+1+x+1+1+1+x+1+x.

Simplifying we have 4x+6.

If we plug in 5.5 for x, we get 4*5.5+6=28

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A student takes a multiple-choice test with 8 questions on it, each of which have 4 choices. The student randomly guesses an answer to each question.What is the probability that the student gets exactly 4 questions correct?Round to 3 decimal places.0.0870.2080.8860.973 imagine a species of butterfly that comes in in a variety of colors 26) In triangle ABC, if AB-BC and B= 70, ZA will be: *O a. 70O b. 110O c. 55O d. 130 Which type of physical activity is being performed in the picture?A. cardiovascularB. strength trainingC. flexibility D. cross training volume of a cube with side length of 5.2 cm. How does repetition affect the tone of the poem?- It creates a soothing rhythmic sensation. - it emphasizes the narrators youthfulness.- it creates a sense of confusion and disorder. - it explains the convention of modern society please answer correctly 1.) Name two pairs of adjacent angles Terrance has to make home mortgage payments. What can you MOST likely conclude about Terrance based on this fact? a transverse wave moves a medium at an abtuse angle to the wave , true or false ? In the above figure, mP = 125 and mQ = (5x). If angles P and Q are supplementary angles, what are the value of x and the measure of angle Q? In 12 sentences, summarize what expenditures are. Which decimal is equal to 4/5? Help me, it's due today ANSWER FOR BRAINLIEST PLEASE Please help me. I will give brainliest Mga epekto ng Neokolonyalismo sa mga bansa sa timog at kanlurang asya what's 9+10?if you know you know please help ill give you brainilist and thanks Which of the following would be made entirely ofnonrenewable resources?A. A bedspreadB. Olive oilC. A car engineD. A textbookSUBMIT