In this discussion, you will reflect on what you have learned about solving equations.

Discussion Prompt: Sarah and Kayla both solved the problem below. Who do you think solved it correctly? For the person who solved it incorrectly, what mistake do you think was made?
Sarah

5x - 15 - 3x = 10 - (-3x + 20)

2x - 15 = 10 + 3x - 20

2x - 3x - 15 = -10 + 3x - 3x

-1x - 15 = -10

-1x - 15 + 15 = -10 + 15

-1x = 5

x = -5



Kayla

5x - 15 - 3x = 10 - (-3x + 20)

2x - 15 = 10 + 3x - 20

2x + 3x - 15 = -10 + 3x + 3x

5x - 15 = -10

5x - 15 + 15 = -10 + 15

5x = 5

x = 1

Post a brief paragraph responding to the discussion prompt above. Your post should use concepts presented in this module/lesson. Your post must be completed before you can see posts from your classmates.
Discussion Responses

Answers

Answer 1

The person that solves the equation correctly is Sarah. It should be noted that the mistake that Kayla made is that she added 2x + 3x rather than subtracting it.

How to illustrate the information?

It should be noted that an equation is simply used to illustrate the relationship between two variables.

In this case, the solution to the equation will be:

5x - 15 - 3x = 10 - (-3x + 20)

2x - 15 = 10 + 3x - 20

2x - 3x - 15 = -10 + 3x - 3x

-1x - 15 = -10

-1x - 15 + 15 = -10 + 15

-1x = 5

x = -5

Therefore, the person that solves the equation correctly is Sarah. It should be noted that the mistake that Kayla made is that she added 2x + 3x rather than subtracting it.

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Related Questions

HELPP PLEASE 70 POINTS

Answers

1st option i believe

The function y = f(x) is graphed below. What is the average rate of change of the function f(x) on the interval -2 ≤ x ≤ 3? -10 Go -8 -6 -4 -2 100 80 60 20 -20 -40 -60 -80 -100 2 8 10​

Answers

Answer:

1 + 1 = 2 a i esta la respjesta

Step-by-step explanation:jijiji

Please help me it doesn't have to be quickly just help

Answers

Answer:

3 to the power of 3

Step-by-step explanation:

Answer:

1. 8x

2.4x^2

3.3^x

Step-by-step explanation:

I took the test

what’s the answer to this???

you have to find where it increases, decreases, and where it’s constant….

help..

Answers

Our intervals will represent the x-values
We know that since there's an arrow pointing
to the left of the line that it goes on infinitely
Same thing when the arrow is going to the
right
Then we can just looking at the x-values on
the graph for the intervals where it starts and
stops

-3,3
inf, -3
3,inf

i hope this helps

The diameter of a cylindrical container is 22cm. If the volume of the container is 1331cm³, calculate its height.

Answers

Answer:

3.5cm

Step-by-step explanation:

Vol=πr²h

Transposing for h,=vol÷πr²

where r=22/2=11cm and taking π=3.142

h=1331/(3.142×(11)²)=3.5cm

Answer is 3.5 cm

Step by step

For cylinders we know
Volume = pi x radius ^2 x height

We know volume is 1331
We know pi = 3.14
We know radius is 11 (diameter is 22, so radius is 1/2 of that, so r=11)
We are looking for height “H”

Fill in the numbers into the formula

1331 = 3.14 x 11^2 x H

1331 = 3.14 x 121 x H

1331 = 380 H

Divide both sides by 380 to solve for H

1331/ 380 = 380/ 380 H

3.5 = Height

Problem solved!


Which of the following describes a situation in which the total distance a baseball player travels is zero meters from his starting point? (5 points)

Answers

Situation (B) best describes how a baseball player travels a total distance of zero meters from his starting point, that is, the player runs 3 meters forward and then 3 meters in the opposite direction.

What is the distance?Distance is a numerical or quantifiable measurement of the distance between two objects or points. The distance can refer to a physical length or an estimate based on other criteria in physics or everyday usage (e.g. "two counties over"). Because spatial thinking is a rich source of conceptual metaphors in human thought, the term is also frequently used figuratively to mean a measurement of the amount of difference between two common pieces (such as statistical distance between probability distributions or edit distance between text strings) or a degree of detachment (as exemplified by the distance between people in a social network). The concept of a metric space is used in mathematics to formalize most such notions of distance, both physical and metaphorical.

According to the options:

Options (A), (C), and (D) is wrong as there the basketball travels some sought distance from the starting point. It is only in option (B) in which the total distance of the baseball player comes to 0 as he runs 3 meters forward and then runs 3 meters in the opposite direction.

Therefore, situation (B) best describes that the total distance a baseball player travels is zero meters from his starting point that is, the player runs 3 meters forward and then runs 3 meters in the opposite direction.

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The complete question is given below:
Which of the following describes a situation in which the total distance a baseball player travels is 0 meters from his starting point? (5 points)

a) The player runs 4 meters forward and then runs 3 meters in the opposite direction.

b) The player runs 3 meters forward and then runs 3 meters in the opposite direction.

c) The player runs 3 meters forward and then runs 4 meters in the opposite direction.

d) The player runs 3 meters forward and then runs 0 meters in the opposite direction.

y is less than -2 in inequality notation

Answers

Given statement 'y is less than -2 ' in inequality notation would be, y < -2

In this question we have been given a statement 'y is less than -2'

We need to write given statement in inequality notation.

We know that, an inequality is a mathematical expression where two non-equal mathematical expressions or numbers are compared.

We know that we use '<' notation for less than.

Consider given statement:

y is less than -2.

⇒ y < -2

Therefore, given statement 'y is less than -2 ' in inequality notation would be, y < -2

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Do you think it would be better to use breaking apart in the distributive property or compensation to find the product of five times 328? explain why and show how to find the product.

Answers

Yes it would be better to use breaking apart in the distributive property or compensation to find the product of 5 x 328 .

what is distributive property?

This property states that multiplying the total of two or more addends by a number will produce the same outcome as multiplying each addend by the number separately and then adding or substracting the results together .like in subtraction  A(B-C)= AB-AC

In other words, an equation of the type A (B+C) can be solved as A (B+C) AB+AC in accordance with the distributive property.

This characteristic also holds for subtraction.

5 x 328

= 5(300+28)

= 5 x 300 + 5 x 28

= 1500 + 140

= 1640

Hence, it would be better to use breaking apart in the distributive property or compensation to find the product of 5 x 328 .

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At 9:00 AM the temperature was -15°C in Anchorage. The
proceeded to rise 4°C each hour. What was the
at 2:00PM.

CAN SOMEONE HELP ME WITH THIS QUESTION

Answers

Answer:

5°C

Step-by-step explanation:

(add 4 each hour)

9AM:-15°C

10AM:-11°C

11AM:-7°C

12AM:-3°C

1AM:1°C

2AM:5°C

A rectangular hotel room has a perimeter of 72 feet. Its area is 320 square feet. What are the dimensions of the room?

Answers

Answer

Step-by-step explanation:

a medical researcher obtains a sample of adults suffering from diabetes. she randomly assigns people to a treatment group and to a placebo group. the treatment group receives a medication over a period of three months and the placebo group receives a placebo over the same time frame. at the end of three months the​ patients' symptoms are evaluated.

Answers

This is an example of an experimental study since the researcher chose who would get medicine and who would receive a placebo.

What is Experimental Study?

a quantitative research technique that controls other pertinent variables while observing the effects of changes in the study's key variables The Impact of Product Modularity on Supplier Integration: A Multi-Objective Approach2 provides further information. In experimental research, participants are randomly divided into distinct groups (such as experimental and control groups) in order to ascertain the causal relationship between a given condition (an independent variable) and a certain outcome (dependent variable).An illustration of an experimental research on the subject would be to assign people at random to either spend 10 minutes on their  page as the experimental treatment, or spend the same amount of time on other websites (control group).

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On a shopping trip, Jeffery buys 3 sweaters and 5 pairs of jeans for $160. Eric also purchases 6 sweaters and two pairs of jeans for the same price. What is the difference in price of a sweater and one pair of jeans?

Answers

Answer:

Step-by-step explanation:

It would most likely be 0, but I am not sure.

Fill in the missing amounts (do not use commas or decimal points.)

Answers

Here are the missing amounts :

A = $2100

B = $300

C =  $50

D =  $270

E = $945

F = $1,345

What are the missing amounts?

Receipts represents income to the company. It is a source of cash inflow. Expenses represents cash outflow. Net cash flow is the difference between receipts and expenses. Cumulate balance is the sum of the net cash flow of the previous periods and the net cash flow of the present period.

A = Net cash flow + expenses

1975 + 125 = 2100

B = Receipts - expense

$2225 - $1925 = $300

C =  Receipts - expense

$2050 - $2000 = $50

D = Net cash flow = $270

E = cumulative balance in April + net cash flow in May

$570 + $375 = $945

F = = cumulative balance in July + net cash flow in August

$1120 + $225 = $1,345

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what is the answer for b?

Answers

Answer:

4

Step-by-step explanation:

2+2=4 dummy

33/25 as a decimal rounded to the nearest tenth

Answers

Answer:1.3

Step-by-step explanation:

33/22=1.32

Round to nearest 10th

1.32=1.3

A rectangle PQRS is dilated about the origin to form a new rectangle P ’Q ’R ’S ’, as shown. What is the scale factor of the dilation?

Answers

Answer:

3

Step-by-step explanation:

Point p was on -1, 2

Point p' was on -3, 6

IF you divde p' by p you get 3, so the dialation is 3.

Jill's plant is 15 inches tall and grows 0.25 inches each week, Mox's plant is 18 inches fall and grows 0.25 inches each week. At this rate, will Jill's plan! ever be faller than Max's Explain​

Answers

No, Jill’s plant will never be taller than Mox’s because both of their plants grow at the same rate (0.25 inches per week).

Convert 5.764764764 ... to a rational expression in the form of a over b , where b ≠ 0

Answers

If x = 5.764764764…, then 1000x = 5764.764764764…, so that

1000x - x = 5764.764764764… - 5.764764764…

999x = 5759

x = 5759/999

What are the values of (-2)^4 and -2^4?
8 and -8
16 and 16
-8 and -8
16 and -16

Answers

Choice: D

16 and - 16
1-24
Determine the sign
24
Write as a multiplication
2×2×2×2
Multiply
Solution
16

-24
Write as a multiplication
-2×2×2×2
Multiply
Solution
-16

A​ town's population is 42,975 . About 125 people move out of the town each month. Each​ month, 175 people on average move into town. A nearby town has a population of 45,225. It has no one moving in and an average of 175 people moving away every month. In about how many months will the populations of the towns be​ equal? Write an equation to model the situation. Then solve the equation and answer the question.

Answers

The number of months when they will be equal is 45 months.

How to calculate the equation?

The equation for the first town will be:

= 42975 + 125x

The equation for the second town will be:

= 45225 + 175x

The number of months when the populations of the towns will be equal will be:

42975 - 125x = 45225 - 175x

- 125x + 175x = 45225 - 42975

50x = 2250

x = 2250 / 50

x = 45

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Watch help video
Adriel drove 216 miles in 8 hours. If he continued at the same rate, how far would he
travel in 3 hours?
Answer:
miles Submit Answer
SAMSUNG
attempt 1 out of 2

Answers

Answer:

bkjjb.l kkllkk kk. lkm j. km j. kk. k mgdv. nutdc

Can please anyone help me with this

Answers

Answer:

Step-by-step explanation:

im not sure but yea

Type the correct answer in each box. Use numerals instead of words.

This graph represents a quadratic function. What is the function’s equation written in factored form and in vertex form?

Answers

The equation of the parabola in vertex form is y + 8 = 2 · (x - 2)². The factored form of the equation of the parabola is y = 2 · x · (x - 4).

What is the equation of the parabola seen in a graph?

Herein we find a representation of a quadratic function on a Cartesian plane, whose formula in vertex form is presented below:

y - k = C · (x - h)²

Where:

(h, k) - Vertex of the parabola.C - Vertex constant

By direct inspection we find that the equation of the parabola has a vertex at (h, k) = (2, - 8) and the point (x, y) = (4, 0). Then, the vertex constant is:

C = (y - k) / (x - h)²

C = (0 + 8) / (4 - 2)²

C = 8 / 4

C = 2

Then, the equation of the parabola in vertex form is y + 8 = 2 · (x - 2)². The factored form of the equation is determined by algebra:

y + 8 = 2 · (x - 2)²

y = 2 · (x - 2)² - 8

y = 2 · (x² - 4 · x + 4) - 8

y = 2 · x² - 8 · x + 8 - 8

y = 2 · x² - 8 · x

y = 2 · x · (x - 4)

The factored form of the equation of the parabola is y = 2 · x · (x - 4).

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A portion of the periodic table is shown below. Which column of elements would be most likely to chemically combine with sodium in a 1:1 ratio?​

Answers

Step-by-step explanation:

chlorine cl when combines with sodium na

Nacl will form so chlorine

Important Please Help!!!!

Answers

Answer:

angle bisector

Step-by-step explanation:

the construction shows an angle bisector.

the line EG bisects ∠ FED

annie measured a city park and made a scale drawing. the scale of the drawing was 1 millimeter : 4 meters. the soccer field is 28 millimeters long in the drawing. how long is the actual field?

Answers

Answer:

Step-by-step explanation:

34 millimeter

28 millimeters x 4 = 112 meters

The quotient of 24 and d

Answers

Answer:

The quotient of 24 and d would be [tex]\frac{24}{d}[/tex]

Step-by-step explanation:

Quotient is the answer of a division problem. So, you would divide 24 by d.


√-100=____ + _____i

Answers

Answer:

[tex]10 + 1i[/tex]

Step-by-step explanation:

[tex]i = \sqrt{-1}[/tex]

[tex]\sqrt{-100} = \sqrt{100} * \sqrt{-1}[/tex]

[tex]\sqrt{-100} = 10 + 1i[/tex]

What is the remainder for 3,167 / 28


45 POINTS!!!

Answers

Answer:

113 with a remainder of 3

Step-by-step explanation:

the teacher separated her class of fifty-eight students into two groups. one group has 6 more than thrice as many students as the other group. how many students are in each group?

Answers

Students in one group is 45

Students in another group is 13

teacher separated her class of fifty-eight students into two groups

Number of groups =2

one group has 6 more than thrice as many students as the other group

Let one group has x students

another group has y students

x+ y = 58  . . . . . 1

x= 6+3y  

Substitute x= 6+3y   in  . . . 1

6+3y +y = 58

4y=52

y=13

x=6+3y=6+3(13)

 = 6+39

 = 45

Students in one group is 45

Students in another group is 13

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