A student’s work is shown below.

y – 12.7 = 32.75

y – 12.7 – 12.7 = 32.75 – 12.7

y = 20.05

Which is the best statement about the student’s work?

The student solved the problem incorrectly. The student should divide both sides of the equation by -12.7 to create a zero pair.
The student solved the problem incorrectly. The student subtracted incorrectly because 32.75 – 12.7 is 20.68.
The student solved the problem incorrectly. The student should add 12.7 to both sides of the equation to isolate the variable, y.
The student solved the problem correctly. Subtracting 12.7 from both sides of the equation isolates the variable, y.

Answers

Answer 1

Answer:

the correct answer is

D the student solved the problem. correctly

Answer 2

Answer:  Choice C

The student solved the problem incorrectly. The student should add 12.7 to both sides of the equation to isolate the variable, y.

================================================

Explanation:

We add 12.7 to both sides to undo the "minus 12.7"

We apply the inverse operation to whatever is happening to x.

As another example, solving x-2 = 10 leads to x = 12 after adding 2 to both sides to undo the "minus 2".

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The student's steps should look like this

y - 12.7 = 32.75

y-12.7+12.7 = 32.75+12.7

y = 45.45

Notice on the left side of the second step, we have the -12.7+12.7 become 0 and go away.


Related Questions

Figure A is a scale image of Figure B.


What is the value of x?

Answers

Answer:

17

Step-by-step explanation:

I the answer is 17 have a great day

f(x) = (1.93)x

What does the function represent?

Exponential growth of 7%
Exponential decay of 7%
Exponential growth of 93%
Exponential decay of 93%

Answers

Exponential growth of 93%


Hope this helps !!

Answer:

C

Step-by-step explanation:

When the number in parenthesis is more than 1, it is growth. So, for example, (.55) would be decay, and in this case, (1.93) is growth.

giving brainly to correct answer

Answers

I think the last one is the right one

I think it’s the last one

The chef of a pizza place used 18 1/2 packages of pepperoni and 9 packages of sausage. How much more pepperoni than sausage did the chef use?


help plz

Answers

Answer:

9, 1/2

Step-by-step explanation:

18, 1/2 - 9 = 9, 1/2

Answer:

9 1/2

Step-by-step explanation:

Find: how much more did the chef use pepperoni than sausage?

How to solve: we need to subtract how much pepperoni did the chef use than the sausage

[tex]18\frac{1}{2} -9=9\frac{1}{2}[/tex]

Answer: 9 1/2

How many 1 ft by 1ft tiles would it take to cover the Washington Monument?

Answers

Answer:

over 36000

Step-by-step explanation:

It is said that over 36000 tiles or stones were used to make the Washington monument. Step-by-step explanation: The Washington monument stands tall at 555 feet and 5 1/8 inches with a width of 55 feet . This monument is built by using three different stones.

Answer:

36,000

Step-by-step explanation:

It is said that over 36000 tiles or stones were used to make the Washington monument. Step-by-step explanation: The Washington monument stands tall at 555 feet and 5 1/8 inches with a width of 55 feet . This monument is built by using three different stones.

8/2(2+2) PLEASE HELP ME!!!!!
Stop reporting this!!! I need help!!!

Answers

Answer:

16

Step-by-step explanation:

you do 2+2 which is 4 then 8/2 is 4 and you multiple 4*4

16 is the answer I’m positive

please help SHOW ALL YOUR WORK

Answers

Answer:

the answer is A

Step-by-step explanation:

because 2+¾= 11/4 and -2+⅛=-15/8. WHEN we collect it we can see the answer is -6/8

C for sure I have the same problem

Find the area of the circle. Round your answer to the nearest hundredth.

Answers

Answer:

16

Step-by-step explanation:

To round 16 to the nearest hundredth consider the thousandths’ value of 16, which is 0 and less than 5. Therefore, the hundredths’ value of 16 remains 0.

12 to find the area of a circle is pi (3.14) multiplied by the radius squared so it’s 3.14x2^2

Hey yall sorry for all the math questions

Answers

answer
……………….
50
……………………………………
Answer:50 it ok……………..&;&4&;&…

The length of the minute hand is 200% of the length of the hour hand.

In 1 hour, how much farther does the tip of the minute hand move than the tip of the hour hand? Round your answer to the nearest hundredth.

Answers

Answer:

An essay is, generally, a piece of writing that gives the author's own argument, but the definition is vague, overlapping with those of a letter, a paper, an article, a pamphlet, and a short story. Essays have traditionally been sub-classified as formal and informal. Formal essays are characterized by "serious purpose, dignity, logical organization, length," whereas the informal essay is characterized by "the personal element (self-revelation, individual tastes and experiences, confidential manner), humor, graceful style, rambling structure, unconventionality or novelty of theme," etc.[1]

Essays are commonly used as literary criticism, political manifestos, learned arguments, observations of daily life, recollections, and reflections of the author. Almost all modern essays are written in prose, but works in verse have been dubbed essays (e.g., Alexander Pope's An Essay on Criticism and An Essay on Man). While brevity usually defines an essay, voluminous works like John Locke's An Essay Concerning Human Understanding and Thomas Malthus's An Essay on the Principle of Population are counterexamples.

In some countries (e.g., the United States and Canada), essays have become a major part of formal education. Secondary students are taught structured essay formats to improve their writing skills; admission essays are often used by universities in selecting applicants, and in the humanities and social sciences essays are often used as a way of assessing the performance of students during final exams.

The concept of an "essay" has been extended to other media beyond writing. A film essay is a movie that often incorporates documentary filmmaking styles and focuses more on the evolution of a theme or idea. A photographic essay covers a topic with a linked series of photographs that may have accompanying text or captions.

I think it moves probably twice as fast as the hour hand but I'm not sure.

i need hel[with this im sorry tho

Answers

Answer:

-3.5, -3, -2 1/2, -2, 2.5

-3.5, -3, -2 1/2, -2, 2.5 souls be correct!!
Explanation: negative numbers are less than positive numbers there for the order above is the numbers listed from least to greatest! Hope this helps :)

Line is intersected by line , as shown in the diagram below. Based on the diagram, which of the following equations must be true? *

∠1 + ∠2 = 180°
∠1 + ∠3 = 180°
∠2 + ∠3 = 90°
∠2 + ∠4 = 90°

Answers

Answer:

From what I have seen, it's: ∠1 + ∠2 = 180°

i think it is the first one

Find the area for the circle (use 3.14 for pi). Show your work. Round to the nearest tenth.

Answers

Answer: 1661.9 yards

Step-by-step explanation:

The formula for the are of a circle is [tex]\pi r^{2}[/tex], so you would do multiply [tex]23^{2}[/tex] (which equals 529) by [tex]\pi[/tex] which gets you 1661.9.

1661.9 is the awnser

The high temperature was 87°Fahrenheit. This was 29ºFahrenheit higher than last year's temperature. What was last year's temperature? ( giving brainlist)

Answers

I believe it was 58* Fahrenheit
The last year’s temperature was 116

Find five rational numbers between -1/2 and 2

Answers

11/10, 12/10, 13/10, 14/10, 15/10

Write the measurements of Sides AB, BC, and CD of the correct net.

Answers

AB- 3in.
BC- 5in.
CD- 7.2in.

sorry i don't really have an explanation I just looked at the picture and i guess imagined it in my head? lol sorry but here are the answers I hope that helps at least a little bit :))

Answer: AB: 3in BC: 5in CD: 7.2in

Step-by-step explanation:

Hope this helps!

solve the inequality below.
10−0.75g≤7

Answers

Answer:

Step-by-step explanation:

-0.75g ≤ 7 - 10

-0.75g ≤ -3

g ≥ 4

the answer to the inequality is g ≥ 4

PLZ HELP I AM ON A TIME LIMIT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I WILL GIVE BRAINLY

5x^5 + 4x^4 − 2x^2 + x − 7 if x = −1.

so ya... And remember to use order of op

Answers

Answer:

-11

Step-by-step explanation:

Here is your answer.

I need help really don’t understand

Answers

Answer:

The answer to your question is 3 feet

The answer is 3 feet

What shape is at the top of the quadrilateral hierarchy?
1. rectangles
2. parallelograms
3. squares
4. quadrilaterals

Answers

I believe it is 4 hope this helps!

Allison had 18 postage stamps she gave 2/9 of the stamps to her mother and used 1/2 of the remaining stamps to send letters to her friends in Canada how many stamps are left

Answers

So first you have to do 18 multiply by 2/9. This gets you 4, next you multiply by 1/2. This gets you 2.

ANSWER: She will have 2 stamps left.
Hello how is your day today

A circular frisbee has a distance of 15.2 inches with one revolution. What is the area of the frisbee? Round to the nearest whole number if needed.

Answers

Answer: 18.385

Step-by-step explanation: One revolution is 15.2 inches.

This means that:

pi*diameter = 15.2 inches

diameter = 15.2/pi

diameter = 4.8383...

radius = 2.419...

Area of a circle: pi*r^2

Therefore,

pi * 2.419...^2 = 18.38557 inches squared

Rounded to nearest whole number: 18 inches squared

18 inches square hope this helps

During a period of extreme cold, the average daily temperature dropped decreased by 11/2°Feach day. How many days did it take for the temperature to decrease by 9°F? Which equation would you use to find the solution?

A x + 11/2 = 9x + 112 = 9

B x − 11/2 =−9x − 112 =−9

C −11/2x = −9−112x = −9

D 11/2x = 9
HELP PLZZ

Answers

C? IM PRETTY SURE ITS C
I think it’s C for this question

Can you help me with these too?
its for a geometry final practice
plisss

Answers

Answer:

I think A and C

Step-by-step explanation:

Im srry if its wrong, but my older sister says that its A and C

Angles 6 and 7

So answer B and C

HELP ASAP!! (USE IMAGES and IF YOU REPLY WITH NONSENSE I WILL REPORT)

Answers

Answer:

The answer is D.

Step-by-step explanation:

Look at the picture and test all of the scenarios. Which ever one works, then that is your answer.

Answer:

d is the answer

Step-by-step explanation:

an architect is planning part of a new construction project using a compass as shown below

if the architect rotates the compass 90 degrees clockwise about the tip, T, to which point on the graph will the endpoint, P, rotate ?


answers:
a: point Z
b: point X
c: point Y
d: point W

Answers

Answer:

D

Step-by-step explanation:

The answer is D. Sorry if I’m late !

Help:) with mathematics

Answers

Answer:

1: 180 Degrees

2:  5 and 1, 4 and 2

Step-by-step explanation:

since 1,2, and 3 are all on the same line, and the sum of a line is 180 degrees, the sum of 1,2, and 3 is 180.

as you look at the lines, you can see it is 2 transversals cutting one parallel. if you look at the line that has the 5,3, and 1, you can see that the angles 5 and 1 are corresponding angles.

if you look at the other line, you can see that 2 and 4 are alternate interior angles which means that they are the same and have a relationship with eachother.

well the first one is 180 degrees for sure
but for he other look at the guy above me

brainliest if your correct!

Answers

Answer:

A

Step-by-step explanation:

-5 = -6 + 1

-5 = -5 (ok)

-17 = -6(3)+ 1

-17 = -18 + 1

-17 = -17 (ok)

Definitely A!

Hope this helped!

Which Statistical Term best describes The most common value in a data set

Answers

Answer: Mode

Mean = average

Median = middle value

Range = difference between lowest & highest value

Answer:

Mode

Step-by-step explanation:

C

The farmer needs to buy fertilizer to spread on his garden. The garden is a 20 x 15 rectangle. A bag of fertilizer covers 30 ft.² of garden. How many bags of fertilizer will be needed?

Answers

Answer:

[tex]10[/tex]

Step-by-step explanation:

The area of a rectangle is given by [tex]A=lw[/tex], where [tex]l[/tex] is the length of the rectangle and [tex]w[/tex] is the width of the rectangle. Therefore, the area of a 20 x 15 rectangle is equal to [tex]20\cdot 15=300\:\mathrm{ft^2}[/tex].

Since one bag of fertilizer covers 30 square feet, the farmer needs [tex]\left \lceil \frac{300}{30}\right \rceil=\boxed{10}[/tex] bags of fertilizer.

Answer:

10 bags of fertilizer.

Step-by-step explanation:

300 area

300 / 30 = 10 bags

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