The equation−3(2x −5)=−12x +15 −18x is solved by four students. They each show the first step of their work. Which student has an invalid first step?

The Equation3(2x 5)=12x +15 18x Is Solved By Four Students. They Each Show The First Step Of Their Work.

Answers

Answer 1

Answer: Student X and Y

Step-by-step explanation:

Student W started off correctly as they simplified the first expression and got rid of the parentheses.

Student Z also started off correctly as they simplified the second expression and combined the like terms.

I don’t see what students X and Y did as their first step but I hope this helps. Sorry if it doesn’t

Answer 2
Answer- student x and student y


Hope this helped!!!

Related Questions

How do I do this?? :(
"Is there only one way to break up a 2-digit number into tens and ones? Explain."

Answers

Yes, to break a 2-digit number into tens and ones it is a simple process. To do it you have to take a number, let's say, 56. We can take the 5, because it has one digit to the right of it, we add one 0 to the right of it. Then we do the 6, which has nothing to the right, so we don't put anything there. 50 and 6. 5 tens and 6 ones.

I'm pretty sure that's the only way. If anyone knows otherwise, please post in the comments.

In 2017, a rock band held a concert in Atlanta, Georgia. The attendance was 53,500. However, in 2018, they returned to Atlanta, but the crowd was only 41,900. What was the percent change in crowd attendance from 2017 to 2018? *

An increase of 21.68%
An increase of 27.68%
A decrease of 21.68%
An decrease of 27.68%

Answers

Answer:

A decrease of 21.68

Step-by-step explanation:

A decrease of 21.68 is the correct answer

The diver is on (-6, 3) on the coordinate plane
The Treasure is on (7, 3) on the coordinate plane

How far is the diver from the treasure.

Answers

Answer:

the diver is 13 away im pretty sure on the coordinate plane

Step-by-step explanation:

because he has to travel from -6 back to 0 then from 0 to 7 which is 6+7=13

The coldest recorded temperature in the United States is –80°F, in Alaska. The warmest recorded temperature in the United States is 134°F, in California. How much higher is the warmest recorded temperature than the coldest recorded temperature?

Answers

Answer:

214

Step-by-step explanation:

I think this is the answer x

Answer:

54ºF

Step-by-step explanation:

I got this by doing -80+135 and I got 54! Hope this helps! Have a great day! :)

Match each value of y with the corresponding value of the function?
f(y) = y + y 2 - 3

1. f(-2) a. 9
2. f(-4) b. 3
3. f(0) c. 17
4. f(2) d. -1
5. f(4) e. -3

Answers

Answer:

The First one: f(-2) a. 9

good luck!

Answer:

Step-by-step explanation:

f(-2)  d

f(-4)  a

f(0)   e

f(2)   b

f(4)   c

Determine whether the graph represents a proportional relationship.

a) Yes, it is a proportional relationship because the graph goes through the origin
b) No, it is not a proportional relationship because the graph does not go through the
origin
c) Yes, it is a proportional relationship because the graph is a straight line
d) No, it is not a proportional relationship because the graph is not a straight line

Answers

Answer:

a

Step-by-step explanation:

GIVING BRAINLIEST! I have a plagiarism checker-

Please answer the following essay question:

Explain why we need to have a common denominator in order to add or subtract fractions.

Answer in paragraph form using complete sentences and include any calculations, graphs, and labeled diagrams as appropriate.

Answers

Answer

If you didn't it there wouldn't be an easy method to do the problem.Having the same denominator is the easiest method and is pretty basic.If you didn't have a common denominator such as:5/8 + 7/6, it would be virtually impossible to solve.

Step-by-step explanation:

A forest covers 33,000 acres. A survey finds that 0.8% of a forest is old-growth-tree. How many acres of old-growth-trees are there?

Answers

Answer:

264 acres

Step-by-step explanation:

Since 33,000 acres is 100%, 330 acres is 1% because 33000 acres divided by 100 is 330 acres. Then if 330 acres is 1%, 33 acres is 0.1% because 330 acres divided by 10 is 33 acres. 1 divided by 10 is 0.1.

Next 33 acres times 8 because 0.8% is eight times bigger than 0.01%. This equals to 264 acres.

i need some help over here

Answers

Answer:

50

Step-by-step explanation:

Answer:

The first one should be 275 the second is 11000

Step-by-step explanation:

Paul will pay for his new car in 36 monthly payments. If his car loan is for $19,061, then how much will Paul pay each month? Round your answer to nearest cent.

Answers

Answer:

$529.47

Step-by-step explanation:

Answer:678

Step-by-step explanation:

Pls answer this:

Sam invests $300 in a bank account that earns simple interest. He earns $24 at the end of 12 months. What is his interest rate?

Answers

Answer:

0.667% per month

Step-by-step explanation:

12 months → $24

1 month → $2

interest rate: 2/300 x 100% = 0.667% per month (3s.f.)

I’m not sure if people answered 0.667% but I’m pretty sure it’s that

explain why 0.32 is greater than 0.102

Answers

Answer:0.32 is closer the the number one then 0.102 is

Step-by-step explanation:

Answer:

0.32 is greater than 0.102

Step-by-step explanation:

Because the more numbers behind the decimal the lower it is

EX. 0.1 is greater than 0.472648726464364872648264

sorry for no picture earlier, anyways pls help

Answers

Answer:

Y=-4x+2

Step-by-step explanation:

The y intercept is 2 when x is 0

Help me pls letter c po

Answers

the answer is a and c

Answer:

c and a

Step-by-step explanation:

for the points

how much warnings does it take until my account dies.

( I have 9 warnings as seen on the picture. )


A ) 10


B ) ∞


C ) Until they send a message


D ) WHY WOULD I KNOW

Answers

Answer:

E

Step-by-step explanation:

Stop posting random stuff.

(Telling him he should stop posting and saying things against TOS!)

Step-by-step explanation:

D i think lol :) hahahahaha sorry

Frederick purchased a large amount of candy for a school event. After the event, of the candy was left over. Frederick put of the left over candy in the faculty break room, and then he took the rest of it home.

Select the expressions that could be used to determine what fraction of the original candy Frederick took home.

Answers

answer: the third option :)
correct me if i’m wrong:)
Third option:)
Please tell me if that’s right,

Of the 200 packages of bagles sold, 15 of them are sesame seed bagels. What percent of the bagel packages sold are sesame seed bagels?

Answers

Answer:

It is 7.5%.

Step-by-step explanation:

15 x

200 100

1500/200 = 7.5

Answer the best you can please :)

Answers

Answer:

586

Step-by-step explanation:

Answer:

4,102/7 in decimal notation: five hundred eighty-six

Three out of five people surveyed said that Shrek 2 is better than Shrek 3 and Shrek 4. If a total of 560 people are surveyed, how many would you expect to agree that Shrek 2 is better?

Answers

Answer:

Shrek 2 IS better than the other 2 because THE OTHER TWO HAS NO PLOT!!

Answer:

336

Step-by-step explanation:

To find the answer, we will cross multiply.

3         ?

5       560

We will first multiply 3*560.

= 1680

Next, we will divide our previous answer by 5.

1680/5= 336

therefore, you would expect 336/560 people to like Shrek 2 better than 3 and 4.

please help
If the team’s average time is less than one minute per leg, then the eighth graders earn 50 points. If not, the seventh graders earn 50 points. Which grade should be awarded 50 points?

Answers

Answer:

the eighth graders receive the 50 pts because, they had the number 58 and 58 is under one minute.

Step-by-step explanation:

Answer:

the eighth graders receive the 50 pts because, they had the number 58 and 58 is under one minute.

Step-by-step explanation:

Carter was given a box of assorted chocolates for his birthday. Each night, Carter treated himself to some chocolates. Carter ate 5 chocolates each night and there were originally 30 chocolates in the box. Write an equation for C,C, in terms of t,t, representing the number of chocolates remaining in the box tt days after Carter's birthday.

Answers

C(t) = 30 - 5t ur very much welcome

Please help me ASAP
I will give brainliest

Answers

Answer:

-23

Step-by-step explanation:

rearrange to point slope form first

slope can be fine by y2-y1/x2-x1 (im using the first 2 points)

so 13-25 = -12 and -54-(-72) = 18, and the slope is -12/18 which is -2/3

then you can use any point (i used the first point) to create the point slope form which is y-ypoint=slope(x-xpoint) and equation would be y-25=-2/3(x+72)

turn it into slope intercept form by multiplying -2/3 within the equation and adding -25 on both sides

you will get y= -2/3x-23

and the y intercept will be (0, -23)

(o,-23)
This is because the slope is -2/3 and if you graph this it’ll show that the line crosses the y intercept at -23

The table shows the number of people waiting in line for different rides at an amusement park.What is the ratio of people waiting in line for the Round-up to people waiting in line for the Slingshot? Roller coaster 15 Slingshot 4 Bumper cars 12 Round-up 11

Answers

Answer:

11:4

Step-by-step explanation:

Hello. All you have to do here is make it as a fraction, so it would be people at the round-up to people at the slingshot. Really it would be a fraction, but on this question it wants a ratio. Hopefully you understand! :D

PLEASE HELP ME ;-; ILL MARK AS BRIANLIEST IF ITS RIGHT
The event coordinator asks you to determine how many students participated in the
track-and-field day. The total number of students in seventh and eighth grade
combined is 584; 5/8 of them are seventh graders and 3/8 of them are eighth-graders. If 4/8 of the seventh graders participated in track-and-field day and 7/8 of the eighth graders participated, about how many total students participated? Describe the process you used to find your answer.

Answers

Answer:

374.125 students. Not sure if you're supposed to round up or down considering you can't have a fraction of a person, but I would round down.

Step-by-step explanation:

(5/8) (584) = 365 seventh graders in total

(3/8) (584) = 219 eighth graders in total

(4/8) (365) = 182.5 seventh graders who participated in track-and-field day

(7/8) (219) = 191.625 eighth graders who participated in track-and-field day

182.5 + 191.625 = 374.125 students in total who participated

Answer:

First, I took 5/8 out of 584 for the seventh graders which came out to 365 seventh graders. Then, I did the same thing with 3/8 and it came out to 219 eighth graders. Then I took out 4/5 out of 365 which resulted as 292. Then I did the same thing for 7/8 and the results came out as 191. So in total 483 students participated in track-and-field day.

Step-by-step explanation:

Density is measured in units of mass per units of volume. It can be thought of as a unit rate. The mass of a block of aluminum is 9.45 grams. The volume is 3.5 cubic centimeters (cm³).

What is the density of aluminum?
I NEED HELP ASAP PLZ 20.PTS

Answers

To get Density you do 9.45 divided by 3.5 equaling 2.7 and that is the density
2.7 is the answer mate good day!

how do you do
this

(move 3 circles to make the figure upside down

Answers

Answer:

Move the top left and right to the sides of the second to last row, then move the single circle from the bottom row to the top.

Step-by-step explanation:

Mr. and Mrs. Simpson went to two movies. The first movie lasted 2 1− 3hours and the second one lasted 1 4− 5hours. How much longer was the first than the second movie?

Answers

Answer:

i’m not sure

Step-by-step explanation:

Which of the following is part of the set of integers?
A. negative whole numbers
B. zero
C. natural numbers
D. positive whole numbers

...... you can choose more than one

Answers

Answer:

A, B and D

Step-by-step explanation:

The set of counting numbers, their opposites, and 0 is the set of integers. Integers are counting numbers, their opposites, and zero. … −3,−2,−1,0,1,2,3…

Answer:

a b d

Step-by-step

The set of counting numbers, their opposites, and 0 is the set of integers. Integers are counting numbers, their opposites, and zero.

Quadrilateral Q’R’S’T is a dilation if quadrilateral QRST, with the origin as the center of dilation.

What appears to be the scale factor used to create this dilation?

4

0.5

2

0.25

Answers

0.5 is the correct answer
0.5 is correct I’m pretty sure

30° is used in a pie chart to represent 5 people. How many people were there altogether???

Answers

Answer:

60

Step-by-step explanation:

here are 360° used in a whole pie chart

Using proportion

30° → 5 people

360° → 5 × 360 / 30 = 5 × 12 = 60

There are 60 people altogether

its 60 dhdkshdshbzzh
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