Kennedy had the expression 3(2x-3x+8). She simplified and rewrote the
expression 3(8+x). If any, what was her error?

Answers

Answer 1

Answer:

It is -3x+24

Step-by-step explanation:

2x-3x is -x or -1x

It can also be simplified further using multiplication.

3(2x-3x+8)

3(-x+8)

-3x+24


Related Questions

What is X in feet

X= Ft

Answers

Answer:

x = 26ft

Step-by-step explanation:

[tex]A^{2}[/tex] + [tex]B^{2}[/tex] = [tex]C^{2}[/tex]

[tex]10^{2}[/tex] + [tex]24^{2}[/tex] = 676

[tex]\sqrt{676}[/tex] = 26

Find the gradient of the line with equation Y=3-x​

Answers

Step-by-step explanation:

Gradient = Coefficient of x = -1.

A store is instructed by corporate headquarters to put a markup of 67​% on all items. An item costing ​$6 is displayed by the store manager at a selling price of ​$4. As an​ employee, you notice that this selling price is incorrect. Find the correct selling price. What was the​ manager's likely​ error?

Answers

Answer:

The correct selling price = $10.02

The manager's likely​ error = $6.02

Step-by-step explanation:

Markup of 67​% on all items

An item cost $6

The correct selling price = $6 + 67% of $6

= $6 + 0.67 × $6

= $6 + $4.02

= $10.02

The correct selling price = $10.02

The store manager's selling price is ​$4.

The manager's likely​ error = The correct spelling price - the manager's selling price

= $10.02 - $4

= $6.02

The manager's likely​ error = $6.02

What is the slope of this graph?
A. -1/4
B. 1/4
C. -4
D. 4

Answers

Answer:

-4

Step-by-step explanation:

its negative because it is decreasing from left to right and 4 because it goes down 4 over one not down one over four

Answer: B : -1/4

Step-by-step explanation: The line is going down to the right which is a negitive slope. So that takes out the options B and C. Then to find the slope you find a point and go over one down four, therefour -1/4. Hope This Helps!

Two trains are traveling at a constant rate. Which train has the greater speed?

Answers

Answer:

Train B.

Step-by-step explanation:

2 hours on Train A would be 120 miles and 2 miles on Train B would be 250 miles. The greater number (which is train B) is the one going the fastest.

Please mark me brainliest I need it! Please!

PLEASE HELP!! please!!

Answers

Answer:

1.a

2.b

3.e

4.f

Step-by-step explanation:

I think these are the answers
1. a
2.b
3.e
4.f
Hope this helped:D

It rains 24 out of 30 days in a month.
At the same rate, about how many
days would you expect it to
rain in 180 days?

Answers

Answer:

144

Step-by-step explanation:

24  

______

30   x6=  180    

24x6= 144

It took Sharon 85 minutes to wash three cars. She spent x minutes on
each car and 10 minutes putting everything away. Solve 3x + 10 = 85 to
find how long it took to wash each car.
A)5.5
B)28.3
C)25
D)31,67

Answers

Answer:

25

Step-by-step explanation:

Solve for x!!! Help please this is urgent!!!

Answers

Answer:

46.6

Step-by-step explanation:

[tex]48^{2} - 20^{2} = 1904\\\sqrt{1904} = 43.6\\43.6 + 3 = 46.6[/tex]

3/4 x 5/6 plssssssssssss help

Answers

the answer is 5/8 :)

3/4*5/6

cross out 3 and 6 and divide by 3

3/3=1

6/3=2

1/4*5/2

multiply the numerator together

1*5=5

multiply the denominator together

4*2=8

1/4*5/2=5/8

answer:

5/8

Which quadratic is best solved by taking the square root?

Answers

Answer:

x^2 - 9 = 0

Step-by-step explanation:

it is best to use square root method when there is no b value. in this equation, there is no b, only an a and c

The answer is A so the first one

john has a goal to ride his bike 100 miles this summer. john has ridden 12 miles thus far. there are 40 days left of the summer. what average number of miles john must ride per day to reach his goal?

Answers

Answer:

2.2

Step-by-step explanation:

100 is his goal, minus what he already did, which is 12, you get 88. Divide 88 with the number of days remaining and then you get the answer.

Answer:

2 1/5 or 2.2 miles per day

Step-by-step explanation:

(100 - 12) / 40 = 2 1/5 or 2.2 miles per day

Problem Francine uses 2 3 3 2 ​ start fraction, 2, divided by, 3, end fraction cup of pineapple juice for every 1 3 3 1 ​ start fraction, 1, divided by, 3, end fraction cup of orange juice to make a smoothie.

Answers

Answer:

Pineapple juice = 2 cups

Step-by-step explanation:

Francine uses 2/3 cup of pineapple juice for every 1/3 cup of orange juice to make a smoothie , how many cups of pineapple juice does Francine use for 1 cup of orange juice

Pineapple juice : Orange juice

2/3 cup : 1/3 cup

how many cups of pineapple juice does Francine use for 1 cup of orange juice

Let x = cups of pineapple juice

Pineapple juice : Orange juice

x cup : 1 cup

Equate the ratios

2/3 cup : 1/3 cup = x cup : 1 cup

2/3 ÷ 1/3 = x / 1

2/3 × 3/1 = x / 1

6/3 = x / 1

Cross product

6 * 1 = 3 * x

6 = 3x

x = 6/3

x = 2

Pineapple juice = 2 cups

Write a conjecture that describes the pattern below.

3, 9, 27, 81...

Answers

Answer:

the pattern is going by 3s and u would multiply 3 by each number

A salespersons commission rate is 4% what is the commission from the sale of $36,000 worth of furnaces use pencil and paper suppose sales would double what would be true about the commission explain without using any calculators

Answers

Answer:

1440

Step-by-step explanation:

36,000x0.04=1440

Beth cooks 2 pounds of pasta. She serves 5 pound of pasta on each plate.
What is the total number of plates Beth serves with the 2 pounds of pasta?

Answers

Answer:

2/5

Step-by-step explanation:

Question 3 (10 points)
(02.06 MC)

In the figure shown, line AB is parallel to line CD.

Part A: What is the measure of angle x? Show your work. (5 points)

Part B: Explain how you found the measure of angle x by identifying the angle relationships that you used along the transversal. (5 points)

AB and CD are parallel lines, and PQ and PR are transversals which intersect AB at P and CD at Q and R. Angle APQ is labeled as 65 degrees, angle QPR is equal to x, angle PRD is equal to 120 degrees.

Answers

Answer:

X = 53

X= 115 - 62

Step-by-step explanation:

Part A: 62 + X = 115

X= 115 - 62

X = 53

Part B:

APQ + QPR = PRD

Dont copy off of me because im not for sure  this is the right awnser            

The measure of angle x is 55.

And to get 55 you first need to find angle BPR.

So, what you would do is 180 - 120 and that equals 60.

So, this means that angle BPR is 60 degrees.

Ok, so now to find the angle of x.

You first need to do 65 + 60 + x =180.

Since we don't know the value of x, we do 65 + 60 and that gives us 125.

So, 180 - 125 = 55. 

So, X = 55.

A farmer has 12 acres of land. He plans to plant w acres of wheat and b acres of barley on his land. If he plans to plant wheat in no more than 3 acres of land, which system of inequalities represents the possible values for b and w ?

Answers

Answer: w+b>12. W>3

Step-by-step explanation: because the teacher tell me

How many like terms are in the expression? 14x- 14y +7 - x + z + 2x
A.0
B.2
C.3
D.5​

Answers

Answer:

5

Step-by-step explanation:

14y, 7, x, z, 2x are the terms in this equation. A term is separated by signs (like + or-)

5 divided by 9/10 :))

Answers

5.55555

Hope this helps

Rates Lin, Diego, and Elena are competing to see who can finish their book the fastest. Lin read the first 54 pages from a 270-page book in the first 3 days. Diego read the first 100 pages from a 320-page book in the first 4 days. Elena read the first 160 pages from a 480-page book in the first 5 days. If they continue to read every day at these rates, who will finish first, second, and third? Explain or show your reasoning:

Answers

Answer:

Diego will finish first while Lin and Elena would finish reading their book at the same time

Step-by-step explanation:

Rates Lin, Diego, and Elena are competing to see who can finish their book the fastest.

Their rates is calculated as:

For Lin

Lin read the first 54 pages from a 270-page book in the first 3 days.

54 pages = 3 days

270 pages = x

Cross Multiply

54x = 270 × 3

x = 270 × 3/54

x = 15 days

For Diego

Diego read the first 100 pages from a 320-page book in the first 4 days.

100 pages = 4 days

320 pages = x days

Cross Multiply

100x = 320 × 4

x = 320 × 4/100

x = 12.8 days

For Elena

Elena read the first 160 pages from a 480-page book in the first 5 days.

160 pages = 5 days

480 pages = x days

Cross Multiply

160x = 480 × 5

x = 480 × 5/160

x = 15 days

If they continue to read every day at these rates, who will finish first, second, and third?

Diego will finish reading his book first while Lin and Elena would finish reading their book at the same time

Answer:

Diego will finish first while Lin and Elena would finish reading their book at the same time

4. A formula used for calculating velocity is v=1/2at^2

Answers

Step-by-step explanation:

You're sure?

But I thought that for calculating distance

Help MEE!! what is the answer please

Answers

Answer:

v=12500-2500h

Step-by-step explanation:

Ok so to create this equation all you need to do is look at what information is given. You start with 12500 gallons of water so we know our equation is going to have 12500 in it.

So far our equation would look like this v=12500

The next information we are given is that it is decreasing by 2500 every hour so we know that we are going to be subtracting 2500 based on how many hours have went by so our equation would then look like this.

v=12500-2500h

we can check this by plugging in some numbers to see if it works. So at Zero hours we should still be at 12500

v=12500-2500(0)

v=12500

Ok so we know that it works for zero, but we should check at least one more number. We know that after 3 hours we would of lost 7500 gallons of water so it should equal 12500-7500=5000 gallons. Lets check this in our equation

v=12500-2500(3)

v=12500-7500

v=5000 Gallons

Lin runs 5 laps around a track in 4 minutes. How many minutes per lap is that?

Answers

Answer:

1.25 minutes per lap

Step-by-step explanation:

1 is 25% of what number

Answers

Answer:

4

Step-by-step explanation:

4 x .25 = 1

Answer:

its 4

Step-by-step explanation:

1÷4×100

=25%

(1×100)÷25

=4

Lines / and m parallel. Can be represented by the 3x+4y=8. If line m passes thorough the point (2,-5), which equation can be used to find the equation of line m

Answers

Answer:

y=−34x+2.75

Step-by-step explanation:

Parallel lines have the same slope. Solve for the slope in the first line by converting the equation to slope-intercept form.

3x + 4y = 12

4y = –3x + 12

y = –(3/4)x + 3

slope = –3/4

We know that the second line will also have a slope of –3/4, and we are given the point (1,2). We can set up an equation in slope-intercept form and use these values to solve for the y-intercept.

y = mx + b

2 = –3/4(1) + b

2 = –3/4 + b

b = 2 + 3/4 = 2.75

Plug the y-intercept back into the equation to get our final answer.

y = –(3/4)x + 2.75

pls help 20points if help.How would the growing season of plants in Florida differ from the growing season of plants in New York?


a.The growing seasons of both states are similar. This is because the climates of both states are similar.


b.The growing seasons of both states are the same. This is because the climate has very little effect on growing seasons.


c.The growing season in New York is much longer than the growing season in Florida. New York's seasons are warmer than seasons in Florida.


d.The growing season in Florida is much longer than the growing season in New York. Florida’s seasons are warmer than seasons in New York.

Answers

Answer:

D.The growing season in Florida is much longer than the growing season in New York. Florida’s seasons are warmer than seasons in New York.

Step-by-step explanation:

find out distinct 3 letter word that can be formed from using the word singapore​

Answers

Answer:

Sing

Gap

Nape

There are more than 3 distinct words

The volume of 100 drops of a liquid is 0.1 fluid ounces what is the volume of 10,000 drops

Answers

Answer:

0.001 fluid oz.

Step-by-step explanation:

100 : 0.1 = 10,000 = 0.001

find the larger of two consecutive integers,x, if the sum of the smaller and larger is -9. write an equation and solve

Answers

Answer:

-4

Step-by-step explanation:

Other Questions
Answer these please i will mark brainliest If Justin can type 408 words in 4 minutes, what is the unit rate of words to minutes? a400 words/ 1 minute b100 words/ 1 minute c102 words/1 minute d412 words/1 minute The length of a rectangle is 4 meters less than twice it's width. If the area of the rectangle is 96 inches, what is the width? Which event broke the British stronghold in the South?The Battle of Bunker HillThe Siege of SavannahThe Battle of Kettle CreekNone of the above The noble-gas notation for the element indium, (In, atomic #49) is:A.?[Kr]5p?B.?[KrJ5524d105pC.?[Kr]5s25d 105p1D. ?[Kr]5524f1450 105p1 How did air fields come to Georgia? one bucket of gravel has a mass of 7.05 kg. what is the mass of 20 buckets of gravel in kilograms? Explain, in your own words, what an electron configuration shows : is y=5 a linear function. y - 15 =-27One step equation . What is the GCF of the expression: 28xy-14X Why is the European Union, created in 1993, important to the economies of Europe? What words from the passage tell the reader that it is written in first person? PLEASE HELP Based on this map, which of the following statements about colonization during the 18th century is true?The colonial powers most often settled in inland territory.The colonial powers were not interested in African territories.The colonial powers from different states did not target the same colonial areas.The colonial powers of Spain and Portugal were the strongest forces in South America.The colonial powers were interested in raw materials in East Asia. Ayye its Drippqueen. i got the bars. We all know rappin is not really hard. In class we had to write a rap and tell what the rhyme scheme is. I dont know what a rhyme scheme is. Can you define what a rhyme scheme is and tell me what the rhyme scheme of my rap is please? Jake and Finn both worked hard over the summer. Together they earned a total of $400. Finn earned $25 more than Jake. (a) Write a system of equations for the situation. Use J for the amount Jake earned and F for the amount Finn earned. (b) Graph the equations in the system. (c) Use your graph to estimate how much each person earned. How much did each person earn? Complete Sentences. Please answer ASAP!! find the slope of the line that passes through the two given points (-5,7)and (3,-1) what does the changing the Aperture do when taking a photo? *4.What effect can you get from using a slow shutter speed? *5.What effect can you create by using a quick shutter speed what is the BEST ANSWER for the slope of the line that contains the following points:(14, 5) and (54, 12) Which outcome was the purpose of the 19th Amendment?establishing free public educationgranting suffrage to people over the age of 19giving women the right to voterepealing Prohibition