The work of a student trying to solve the equation 4(2x − 1) = 11 + 3x + 5 is shown below:

Step 1: 4(2x − 1) = 11 + 3x + 5
Step 2: 8x − 4 = 16 + 3x
Step 3: 8x + 3x = 16 − 4
Step 4: 11x = 24
Step 5: x = 2.18

In which step did the student first make an error and what is the correct step?

Step 2: 8x − 1 = 16 + 3x
Step 2: 8x − 8 = 6 + 3x
Step 3: 8x − 3x = 16 + 4
Step 3: 8x + 3x = 16 − 8

Answers

Answer 1

Answer:

step 3

Step-by-step explanation:

answer is step 3: 8x-3x=16+4

when your bringing over a plus you make it a minus

same with the minus bring it over its plus now

also with times and divide

time turns to divide

divide turns to times


Related Questions

which statement is incorrect?

Answers

Where exactly are the alleged statements?

Which expression represents the difference of 15 and s, increased by 4?
A. (15 + s) - 4
B. (4 + s) + 15
C. (4 - s) + 15
D. (15 - s) + 4

Answers

the answer to this would be D

Given the triangle below, which of the following equations correctly represents the relationship between a, b, and c?

Answers

Answer:

C. c^2=a^2+b^2-2abcos(90°)

Step-by-step explanation:

This is the law of cosine.

Answer:

C, you're welcome :)

Step-by-step explanation:

pls pls help ill give brainliest. the red is not part of it it was just how i screenshot it

Find the missing side length.
Assume that all intersecting sides meet at right angles.
Be sure to include the correct unit in your answer.

Answers

Answer:

5.5 ft

Step-by-step explanation:

therefore if you cut 11 in half you get 5.5

PLS HELP ME I WILL GIVE YOU BRAINLIEST!

Answers

If I’m not wrong it’s 4) 69.08 m

Answer:

The answer is 4) 69.08 m

Step-by-step explanation:

A car dealership offers two types of discounts. a car built last year and then receive a $3,500 rebate.

• Discount 2: Take 10% off the original price of a car built this year and then receive a $1,250 rebate. A customer is deciding between two cars.

• Car R was built last year and has an original of $25,340. • Car S was built this year and has an original price of $22.860.

Based on the information, which statement is true?

F The customer would pay $19,324 for Car S.
G The customer would pay $24,073 for Car R.
H The customer would pay $21,824 for Car S.
J The customer would pay $23,107 for Car R.​

Answers

Answer:

The answer would be F

Step-by-step explanation:

A state university locks in costs for a student once a student starts attending the university. The total cost is $23,500. A student has the following help in covering the costs of school. An academic scholarship of $8,200. Other scholarships and grants of $7,400. Grandparents pay $1,000. What is the amount that the student will need to save every month in order to pay off the remaining costs in 10 months?

Answers

Answer:

Answer is 690 every month

Step-by-step explanation:

The total cost is $23,500

Scholarship:8200$

2nd scholarship:7400$

Grandparents: 1000$

23,500-8,200-7400-1000=6900÷10=690

He will have to save up 690 every month for 10 months


Solve for the missing angle:

A 41 degrees
B 108 degrees
C 82 degrees
D 298 degrees

Answers

41 is the only reasonable answer

The product of two consecutive positive integers is 26 more than ten times the largest of the two numbers.

1. Write an equation to represent the situation above.

Answers

Answer:

x(x+1)=10(x+1)+26

Step-by-step explanation:

Let the two consecutive positive integers be x and x+1.

The product of these two integers is x(x+1).

The largest of the two numbers is x+1.

By given, x(x+1)=10(x+1)+26.

help please! i can't find the answer anywhere

Answers

Answer:

A

Step-by-step explanation:

-16t^2 + 24t= 0

-2t^2+3t =0

3t= 2t^2

3= 2t

t=1,5

Which of the expressions have like terms? select all that apply
A. 14m + mn
B. 2y + 2x + 4
C. -3/4m + 8m + m
D. 4 - 3p
E. 5.75t + 7.75t - t
F. 8xy - 6xy

Answers

Answer:

C, E and F

Step-by-step explanation:

As,

C. - 3/4 m + 8m + m. [Like terms of m]

= 29/4 m + m

= 33/4 m

E. 5. 75t + 7.75 t - t. [Like terms of t]

= 13.5t - t

= 12 . 5t

F. 8xy - 6xy. [Like terms of xy]

= 2xy

What percent of 140 is 50?​

Answers

Answer:

35.71%

Step-by-step explanation:

50:140*100 =

(50*100):140 =

5000:140 = 35.71

35.71428571 percent or approximately 35.71%

Compare | -3| And 1
PLS

Answers

Answer:

|-3| > 1

Step-by-step explanation:

Well |-3| = 3

3 > 1

1 < 3

(you can replace 3 for |-3| in those up there^)

What is the circumference of a circle with a diameter of 85 feet?
feet
(Use 3.14 for P.)

Answers

267 is the answer idek I’m not sure I tried

Answer:

266.9 feet

Step-by-step explanation:

Find the radius

85 ÷ 2 = 42.5

Find the circumference

2 × 3.14 × 42.5 = 266.9 feet

What is the definition of right angles and straight angles?

Answers

Answer:

Right Angle- an angle of 90°, as in a corner of a square or at the intersection of two perpendicular straight lines.

Straight Angle-A straight angle is 180 degrees. This is a straight angle.

Step-by-step explanation:

180 is a straight angle and 90 is a Right angle

What is 12x^2 + 53x + 20 written as a product?

Answers

Answer:

(12x+5)(x+4)

Step-by-step explanation:

 

5) Today's temperature is 10 degrees. Yesterday's temperature was -3. What is
the range of the two temperatures? *

Answers

Answer:

13

Step-by-step explanation:

10--3=

So is 13

But not sure

Write 5.9 as a mixed number.

Answers

Answer:

[tex]5\frac{9}{10}[/tex]

good luck, i hope this helps :)

Answer:

5 9/10

Step-by-step explanation:

Which fraction would make this equation true? 7 x ? = 5 1/4

Answers

Answer:

3/4

Step-by-step explanation:

Assuming that the fraction is a

So, 7 * a =5 1/4

7 * a = 21/4

a = 21/28

a = 3/4

The fraction is 3/4

Answer:

3/4

Step-by-step explanation:

A square has a perimeter of 25 inches. Find the length of a side.

Answers

Answer: The area is a = 6.25

Step-by-step explanation: Using formula P = 4 a

Solving for a

a = [tex]\frac{p}{4}[/tex]  = [tex]\frac{25}{4}[/tex] = 6.25 in

6.
Do the following conversions:
a.2 GB = ---------------- Kb

b.
2×10 MB = ------------------- B


please answer the question fastly​

Answers

Answer:

a) 2000000 kilobytes

b)20 000 000 bytes

Solve for p: p2 + 36 = 13p.

Pls help​

Answers

Answer:

p=4

p=9

Step-by-step explanation:

plz answer these quickly anyone plz answer ​

Answers

Answer:

1.perimeter=πr/2=3.16×6/2=18.96/2cm=9.48cm

2.perimeter =

πd/2+2×5=3.16×17/2+10=36.86cm

Daisy, Kyra, and Ana will share the cost to buy their teacher a present for
her birthday. The cost of the present for their teacher is $60.
Daisy will pay 40% of the cost.
Kyra will pay 0.35 of the cost
Ana will pay the remainder of the cost
How much will Daisy, Kyra, and Ana each pay?

Answers

Kyra is paying $21 (60*.35)
Daisy is paying $24 (60*.40)
Ana is paying $15 (60-21-24)

can you help me please​

Answers

わからない、ごめんなさい。ポイントが欲しかったです笑

Hope this helped :))


- Freddie babysits to make extra money. When he babysits, he charges $15 per hour plus $6 to pay for the
gas he uses to drive to the house. One evening, he makes $126.

Answers

Answer:

Step-by-step explanation:

ok im assuming youre trying to find how many hours he worked so

our equation is y = 15x + 6

plug 126 in for y

126 = 15x + 6

solve for x

120 = 15x

8 = x

so he worked for 8 hours

Find the 58"" term of the following arithmetic sequence,
18, 23, 28, 33,

Answers

Answer:

303

Step-by-step explanation:

So the equation to find a term is An=a1+(n-1)d

An represents the value of the number (n)

and n is the selective that you want

d is the difference between the first and second term which is 23-18=5, and you can see that adding 5 to the previous term gives the following term.

a1 is the first term in the sequence

so knowing all that now you can go back and inset all variables into the equation

An=18+(58-1)5

An=303

Hope that helps :)

Please give brainliest

Drag and drop the answer into the box to match each multiplication problem. 0.45×104= 0.45 × 1,000,000= 0.45 × 100=

Answers

Answer:

46.8, 450,000, 45

Step-by-step explanation:

A multiplication process is a method or an algorithm to multiply two or more numbers.

The given operation is to do multiplication process and finds its answer.

0.45 x 104 = 46.8

When we multiply 0.45 with 104, we get the answer as 46.8

0.45 x 1,000,000 = 450,000

When we multiply 0.45 with 1,000,000, we get 450,000.

0.45 x 100 = 45

When we multiply 0.45 with 100, we get 45.

Answer:

0.45 x 10 4 (Powers of ten) = 4,500

0.45 x 1,000,000 = 450,000

0.45 x 100 = 45

Step-by-step explanation:

I did the test and this was the correct answer (Hope this helped)

What is the range of this data set?

3.7, 18.5, 2.7, 13.8, 7.5, 15.2, 10.1, 7.6, 17.8




14.1

15.8

17.8

18.5

Answers

Answer:the answer is 15.8

Step-by-step explanation:

Jessie spent a total of 14.00 to purchase a gift and have it gift-wrapped and mailed. The cost for the postage was $2.25, and she knows the gift itself cost $9.50.

Answers

Answer:

she spent 11.75$ total

Step-by-step explanation:

9.50+2.25=11.75

Other Questions
PLEASE HELP show work for problem In what way is heat transferred to the tubes? (Hint touching)Please helpI will give you Brainliest When Reena subtracted 9 from thrice a number, the result was 15. Then the number is-78-3-8 55+16=13x4=9-2=3/5how much wood could a wood chuck chuck if a wood chuck could chuck wood? A gas has a volume of 350 ml at 45oC. If the volume changes to 400. ml, what is the new temperature in oC will give brainliest! please help quickA can of soup is 12 cm tall and has a radius of 4 cm.What is the volume of soup that the can will hold?48 cm80 cm144 cm192 cm the question.Which of the following is an example of global cooperation?A. European UnionB. International Committee of the Red CrossC. NATOD. Nature Conservancy Multiply 1/10x17/18 pls help I'll give u brainlest who was hammurabi and what was important to him and rule if babylonia please help to do this Which polynomial is written in standard form ? Oil and wood are both used as sources of fuel. How are these two resources different?Question 2 options:Oil is a natural resource and wood is not.Wood is a natural resource and oil is not.Oil is a renewable resource and wood is nonrenewable.Wood is a renewable resource and oil is nonrenewable. 10 most important events in harry potters sorcerers stone If a sample contained 3.01 x 1023 atoms of tellurium, how many grams would this be A) 127.6 g B) 255.2 g C) 63.8 g D) 382.8 g Describing Energy TransformationsThis activity will help you meet this educational goal:You will write an explanation of a process using precise language and vocabulary.DirectionsRead the instructions for this self-checked activity. Type in your response to each question, and check your answers. At theend of the activity, write a brief evaluation of your work.ActivityIn this activity, you will analyze some events and describe the energy transformations that take place.Part AA battery powers a circuit for a small noisy fan. The fan's motor gets warm as it turns. What energy transformations aretaking place? 99 is what percent of 718 Does anyone know how to solve this? Gil, floor supervisor at JKR Custom Cabinets, has been talking to his workers about what the union organizer has said in recent meetings with the workers. The workers have shared their belief that the union has the power, in future negotiations with management, to obtain employee benefits that are much desired by the workers. Therefore, Gil has advised his division manager that the upcoming vote will be:________a. to seek arbitration.b. to seek mediation.c. in favor of the union.d. in favor of an economic strike. PLEASE HELP I WILL MARK YOU BRAINLIEST determine the exact and approximat solutions for 4(x + 5)^2 = 21 show your steps 1. Why were Coalition governments a problem for the success ofdemocracy?