Mathematics Middle School

Find the mistake: two-step equations
5 stars for correct asnwer- there r three choices- step 1, step 2, and "Ling did not make a mistake."
have a great day byeeee

Find The Mistake: Two-step Equations5 Stars For Correct Asnwer- There R Three Choices- Step 1, Step 2,

Answers

Answer 1
Ling did not make a mistake
Answer 2

Answer:

Ling did not make a mistake.

Step-by-step explanation:

[tex]\bf -2q+11=-32[/tex]

[tex]\bf -2q=-43[/tex] (Step 1)

[tex]\bf q=21.5[/tex] (Step 2)

First step, Ling subtracted 11 from both sides which's correct.

Then she divided each side of the equation by -2. correct*

Hence, Ling didn't make a mistake.

_____________________

Related Questions

Match each equation to a step that will help solve the equation for x.

3x = -4

Select one:
add 3 to each side
add (-1/3) to each side
add (1/3) to each side
multiply each side by (1/3)
multiply each side by 3
multiply each side by -3
multiply each side by (-1/3)
add -3 to each side

Answers

Multiply or divide each side by 3

Sears is selling jeans at 10% off the regular price. Jeans regularly sell for $30. What is the cost of the jeans on sale?

Answers

Answer:

$27

Step-by-step explanation:

10% of 30 is 3. So just take that away from 30.

It’s $27 just multiply 30x.10 then subtract that out of $30

Mr. Coulson counted the bolts in his hardware cabinet and made a line plot.

Part A
What is the total length of the bolts that are less than 1 inch long?
A. 1 6/8
B. 3 3/8
C. 4 6/8
D. 5 5/8

Part B
What fraction of the bolts are greater than 1 inch long?
A. 4/10
B. 3/7
C. 4/6
D. 7/10

Answers

The total length of the bolts that are less than 1 inch long is 1 6/8 inches while the fraction of the bolts are greater than 1 inch long is 4/10

What is line plot?

Line plot is a type of graph that is used to represent a group of data on a number line.

From the number line:

Length less than 1 in = 3/8 + 4/8 + 7/8 = 14/8 = 1 6/8 inches

Fraction of the bolts are greater than 1 inch long = 4 / 10

The total length of the bolts that are less than 1 inch long is 1 6/8 inches while the fraction of the bolts are greater than 1 inch long is 4/10

Find out more on line plot at: https://brainly.com/question/1081562

Study Island is torture! Will you please help me?
Which of the following measurements could be the side lengths of a right triangle?
A.
60 in, 96 in, 120 in
B.
72 in, 96 in, 144 in
C.
72 in, 96 in, 120 in
D.
72 in, 108 in, 120 in

Answers

C) 72in., 96in., 120in.

Victor borrowed money at 5.25 percent simple annual interest. At the end of the year, the interest on the loan is $255.94. What was the amount of the loan?
A:$13.44
B:$134.37
C:$1,343.69
D:$4,875.05

Answers

Answer:

A) $13.44

Step-by-step explanation:

Answer:

ITS C

Step-by-step explanation:

(PLS HELP, if you send a file i'm reporting you)

Answers

Answer:

CDHK is a transformation image of TSMP. Therefore, angle D is the same as angle P so it is 110°

Step-by-step explanation:

S=K

M=C

P=D

T=H

hope this helps

A human hair was measured to be 8.0 × 10^−4 inch thick. A cat hair was measured to be 4.0 × 10^−1 inch thick. How much greater is the thickness of the cat hair than the human hair? Write the answer in standard form.

Answers

Answer:

0.3992

Step-by-step explanation:

8.0x10^-4=0.0008

4.0x10^-1=0.4

0.4-0.0008=0.3992

or

3992x10^-4

Please Give brainliest if this is right.

(I wrote it two ways just in case you neede it!)

8 POINTS: Which angles are complementary to ∠DFE? Select all that apply. Please help... stuck here.

thanks,

Answers

EFA because complementary angles add up to
90 degrees and DFE and EFA are equal to BFA
which is 90
THANKS! O
COMMENTS

The angle that is complementary to ∠DEF is ∠EFA.

Option C is the correct answer.

What is an angle?

The angles between two lines are the angles formed by two intersecting lines, measured in degrees or radians.

Several different types of angles can be formed between two lines, including acute angles, right angles, and obtuse angles.

We have,

Complementary angles are two angles that add up to 90 degrees.

In other words,

If angle A and angle B are complementary angles, then A + B = 90 degrees.

Now,

From the figure,

∠DEF and ∠EFA will make a 90-degree angle.

Thus,

The angle that is complementary to ∠DEF is ∠EFA.

Learn more about angles here:

https://brainly.com/question/7116550

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The Rock has an 88-gallon fish tank. When it needs to be cleaned, it can be drained at a rate of 6 gallons per minute. Show all work. Complete sentence for each question.

first part: Assuming the tank was full, write a function in the form y=mx + b that represents the amount of water in the tank, Y, after X minutes. You will need to know the initial value and the rate of change.

second part: How long has the tank been draining for if it has 34 gallons left?

Answers

Answer:9 minutes

Step-by-step explanation:

1. to find how much was drained subtract how much is left from the total amount when full  88-34= 54

2. divide answer by the rate per minute  54/6

3. you have answer 9 minutes

The amount of water in the tank is given by y = -6x + 88, it would take 9 minutes for the water to remain 34 gallons.

What is an equation?

An equation is an expression that shows the relationship between two or more variables and numbers.

Let y represent the amount of water after x minutes.

The Rock has an 88-gallon fish tank which can be drained at a rate of 6 gallons per minute. Hence:

m = -6, b = 88

y = -6x + 88

For 34 gallons:

34 = -6x + 88

x = 9

Hence, the amount of water in the tank is given by y = -6x + 88, it would take 9 minutes for the water to remain 34 gallons.

Learn more on equation at: brainly.com/question/2972832

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What is the first step in determining if 6 is a solution to 3 x = 18?
A: Substitute 6 for x in the equation.
B :Rewrite 3 x as 36.
C: Multiply 3 and 18.
D: Divide 6 by 3.

Answers

Answer:

I think its A. Im sorry if its wrong

Step-by-step explanation:

It think it is A as well.

My teacher put a note to help me in the conner please help me im confused

Answers

Answer:

x=3.75 i think

Step-by-step explanation:

30 x 150

4500 then 4500 / 1200 = 3.75

What is the maximum number of broken light bulbs represented on the histogram?
A) 33
B) 41
C) 46
D) 50
You'll get brainliest if you answer it correctly and will give me a good night's sleep

Answers

50 cuz it’s the highest number

Over what interval is the function​ increasing, and over what interval is the function​ decreasing?

Answers

Answer:

1

Step-by-step explanation:

increasing when x>0
Decreasing when x0

Help Smart Peoples! I’m in trouble! Help!
Which statement is true about the y-intercept?

A) Photographer A charges more upfront ($25).

B) Photographer A charges more upfront ($50).

C) Photographer B charges more upfront ($80).

D) Photographer B charges more upfront ($50).

Answers

Answer:

Step-by-step explanation:

c.) as it is shown in both as a true statement

hope this helps Pls make me brainliest and like

The results of an experiment are in the table below. Which statement is true?


A. We would have expected more 6s to have been rolled.

B. We would have expected fewer 3s to have been rolled.

C. We would have expected fewer 2s to have been rolled.

D. We would have expected more 1s to have been rolled.

Answers

Answer:

answer is D

Step-by-step explanation:

because to even it out, you would need ore ones to have rolled to make an average

D you need to even it out because there are more 1’s

Find the area of the circle. Round your answer to two decimal places, if necessary.

Answers

Answer:

The answer is : 530. 93

Step-by-step explanation:

[tex] a \: = \pi \times r^{2} [/tex]

[tex] = \pi \times 13^{2} [/tex]

[tex] = 169\pi = 530.92[/tex]

1. What is the probability of choosing a gray button, replacing it, and choosing gray again?

2. What is the probability of choosing a gray button, not replacing it, and choosing gray again?

Answers

I am confused is that all the question? like a picture or something
I can’t do this?? It isn’t really a problem I don’t see anything to go off of.

HELPP PWEASEEE BRAINLIESTT FOR THE FIRST

Answers

Answer:

letter p

Step-by-step explanation:

Count all the lines except the one with the zero underneath it. The total is 8 now go to the first line after zero which has a P so therefore it’s one-eighth

The answer is p that’s it

Pls Help I really need it

Answers

Answer:

Best guess: 13

Step-by-step explanation:

Count all the dots, and that would make it the total ammount of measurements,

Advice: make sure I diddn't miscount.

Which of the angles in the diagram are acute angles?

Answers

Answer:

Angle 4 and angle two

Step-by-step explanation:

Both angles look less than 90 degrees.

Thus both angles 4 and 2 are acute.

Angle 4 and angle 2
They are both less than 90* so that makes them acute

I need help my other question got banned

Answers

Answer: Perimeter = 12 units

Area = length² = 3² = 9 units²

Step-by-step explanation: Draw the points on a Cartesian Plane with linear values on the x- and y-axes and connect the points. Once you’ve connected all the vertices (points), you will realise that the shape is a square. *Each vertex must be given its letter when allocating each point, that way you will see that that C and D are distanced from one another vertically; and that means you should use the y-values of each vertex to find the perimeter and area.*

• The vertical distance from point C and D is 3 units (substract the y-values from one another).

• The HORIZONTAL distance from D to E is 3 units (substract x-values from one another because the vertices are distanced horizontally).

• The vertical distance from E to F is 3 units.

• The horizontal distance from F to C is 3 units.

To calculate perimeter, you add up all the units of each side.

P = 3 + 3 + 3 + 3 = 12 units

After connecting the vertices, you will realise that the polygon is a square, so you use the formula for the area of a square.

A = length² = 3² = 9 units.

Which data set contains an outlier?

{2, 2, 3, 3, 4, 4, 5}

{12, 16, 18, 21, 23, 26}

{6.1, 6.7, 7.4, 7.9, 8.5}

{4, 6, 7, 7, 9, 12, 40}

Answers

the last data set because 40 is nowhere near the other numbers

Answer:

Last one

Step-by-step explanation:

The 40 is way higher than the others. so its not with the others not common

The equation 3x+2y=0 repersents a proportional relationship what is the constant of proportion

Answers

The answer is 3/2. Hope that helped :-)
The answer for this question is 2/3.

The first three terms of a geometric sequence are as follows.

Answers

Answer:

Easy! It is 16 and 32

Step-by-step explanation:

It gives you the first 3 terms,( 2,4,8 )

Now you just need to find the pattern. !! By the looks of it, it is multiplying by 22X2 is 4 and 4X2 is 8

To make this true we need to find the next 2 numbers in the geometric sequence!8X2 is 16 and 16X2 is 32

FROM- THE GENIUSANSWERER

PLEASE HELP ME If this rectangle is dilated using a scale factor of One-half through point B, what is the result? Point B is the bottom left corner of rectangle X. Point B is the bottom left corner of rectangle X. Rectangle X prime is double the size of rectangle X. Point B is the bottom left corner of rectangle X. Rectangle X prime is half the size of rectangle X and point B is at the bottom left corner. Point B is the bottom left corner of rectangle X. Rectangle X prime is double the size of rectangle X and is outside of rectangle X. Point B is the bottom left corner of rectangle X. Rectangle X prime is half the size of rectangle X and is outside of rectangle X.

Answers

Answer:

It is B just took the unit quiz

Answer: Point B is the bottom left corner of rectangle X

Step-by-step explanation:

FREE BRAINLIST!

A point has been translated right and up. The image of the point is point E. What point is the pre-image of point E?

A
B
C
D

Answers

Answer:

B

Step-by-step explanation:

It is the only one that would be possiable

A would not go up but it would go right

C would have to go down and left

D would have to go up but it would have to go left

B is the only one that would have to go up and right to get E

The answer of your question is B because point E is upper right of the grid.

The probability of rolling two number cubes whose numbers match is 6/36.
What is the probability that the numbers do not match?

Answers

Answer: The answer is 30/36.

Step-by-step explanation: The reason why is because 6/36 DOES match so that means the rest or “leftovers” of 6/36 will be the fraction of DOESN’T match. So 30/36!

Using the numbers -4, 10, 8, 2, -3, -5, write down two expressions that equal 6. You can use any relevant operation. You have to use more than 2 integers in each calculation.

Answers

Answer:

[tex] \sf \Bigg[ \frac{ ( - 4 \times ( - 3)) }{2} \Bigg] \: and \: \Bigg[ \frac{ - ( - 5 \times 8)}{10} + 2 \Bigg][/tex]

Step-by-step explanation:

Given:

[tex]The \: numbers \rightarrow -4, 10, 8, 2, -3, -5[/tex]

To find:

Two expressions that equal 6 using the given numbers

Solution:

Expression first,

Using numbers -4, 2, -3,

aligning the above numbers as,

[tex] \frac{ ( - 4 \times ( - 3)) }{2}[/tex]

will out put 6.

Verification,

[tex] \frac{ ( - 4 \times ( - 3)) }{2} = \frac{12}{2} = \cancel\frac{12}{2} = 6[/tex]

Expression second,

Using numbers 10,8,2,-5

aligning the above numbers as,

[tex] \frac{ - ( - 5 \times 8)}{10} + 2[/tex]

will result 6.

Verification

[tex]\frac{ - ( - 5 \times 8)}{10} + 2 = \frac{ 40}{10} + 2 \\ \\ \frac{ - ( - 5 \times 8)}{10} + 2= 4 + 2 \\ \\\frac{ - ( - 5 \times 8)}{10} + 2 = 6[/tex]

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Constant of Proportionality from Context

Answers

the surface area of the rectangular prism is 92 cm
To find the surface area of the rectangular prism you would have to use the formula:

SA= Ph+2B

In other words, Surface Area= perimeter of the base * the height+ 2 times the area of the base.

SA= 10*8+ 2(6)
SA= 80+12
SA= 92 cm^2

The Incredible Chocolate Chip Company has discovered that 36 out of 400 cookies do not contain enough chocolate chips. What percent of the chocolate chip cookies has enough chips?

Answers

Answer:

9%

Step-by-step explanation:

36:400*100 =

(36*100):400 =

3600:400 = 9

Answer:

9%

Step-by-step explanation:

36/400, divide them you get 0.09, then move the decimal two places to the right and it becomes 9%

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