18. Explain the Error Andy and Sylvie each incorrectly simplified
the expression - 3 - 4(2x - 3). Andy wrote – 14x + 21 and Sylvie
wrote 8x - 6. Explain their errors and give the correct answer.
-

Please help me

Answers

Answer 1

Answer:

the correct solution is -8x + 9.

Step-by-step explanation:


Related Questions

PLEASE HELLPPP!!!!! OR MY GRADES WILL BE LOW

Answers

Answer:

C

Step-by-step explanation:

Answer:

The answer is 60 percent so it either D or A

Step-by-step explanation:

My guess is A but I apologize if i'm wrong.

Jayla had a bake sale to raise money. At the end of the day, she had 2 1/ 4 apple pie, 2/ 4 lemon pie, and 1 3 /4 cherry pie left. Add these three amounts together to find out how much pie is left in total. Leave your answer as a mixed number.

Answers

Answer:

4 2/4 or 4 1/2

Step-by-step explanation:

2 1/4+1 3/4

If you take 3/4 and add it to 1/4 you get 1 then you at 1+1+2=4 then you add the lemon ie which is 2/4, therefore, the answer is 4 2/4 or 4 1/2(simplified).

Answer: 2 1/4 + 2/4 + 1 3/4 = 4 2/4 and if simply it would be 4 1/2

Step-by-step explanation: 2 1/4 + 2/4 = 2 3/4 and plus 1 3/4 it would be 3 6/4 and you liked mixed number then it will be 4 2/4 and if simply it would be 4 1/2

Which fraction shows a correct way to set up the slope formula for the line that passes through the points (4, -6) and (-2, 1)?

Answers

Answer:

B

Hope it helps!!!!!!brainliest pls!!!!!!

[tex]\mathbb{FINAL\;ANSWER:}[/tex]

[tex]\huge\boxed{\sf{Option\;B\;is\;correct}}[/tex]

[tex]\mathbb{SOLUTION:}[/tex]

Hi! Hope you are having a nice day!

Slope Formula:

[tex]\sf{\displaystyle\frac{y2-y1}{x2-x1}[/tex]

[tex]\sf{\displaystyle\frac{1-(-6)}{-2-4}[/tex]

As we can see, Option B is the right option; all the other options are wrong.

Hope you could understand everything.

#LearningIsFun

Alberto ran 4/5 kilometer on Monday. On Tuesday, he runs 9/10 of the distance he ran on Monday.

How far did he run on Tuesday?

Enter your answer in the box as a fraction in simplest form.

Answers

Answer:

18/25

Step-by-step explanation:

Answer:

[tex]\frac{18}{25}[/tex]   (18/25)

Step-by-step explanation:

4/5 (x, +, -) 9/10 = 0.75

0.75 (=, or to) = (fraction) = [tex]\frac{18}{25}[/tex]

[tex]\frac{18}{25}[/tex] = (simplest form) = [tex]\frac{18}{25}[/tex] (already in simplest form)

Thus, the answer is 18/25 ([tex]\frac{18}{25}[/tex])

Have a great day/night.

Bye!

HELP!! will give braniliest!!!!!!!

Answers

Answer:

its first and i think fourth

Step-by-step explanation:

they're just written differently. the first one is just flipped and the last can be seen as distributing

please mark me !!! thank you

Pls, help!!!! Will make brainliest!!!

Answers

Answer: 15)a 45x-380

15)b no.

Step-by-step explanation: Because 380/45=8.4444 which that means it will take him 8 days to finish.

I need help please this is due today

Answers

Answer:

...

Step-by-step explanation:

I can't really see well there

True 20 words per minute is a good estimate for how fast, in general, the students typed at the beginning of the course. False​

Answers

Answer:

20 words per minute is a good estimate for how fast, in general, the students typed at the beginning of the course. so thats true

Step-by-step explanation:

The supply and demand model shows how the price of the shares of a new stock changes in a market.
a. Describe and interpret each curve.
b. Which part of the graph represents a surplus? a shortage? Explain your reasoning.
c. The curve intersects at the equilibrium point, which is where the number of shares equals the quantity demanded. Suppose that demand for the shares suddenly increases, causing the entire demand curve to shift up. What happens to the equilibrium point?

Answers

Answer:

Step-by-step explanation:

6x-10y=1 10y=x-1

What are the coordinates for graphing this equation

Answers

Answer: [tex](0,-\frac{1}{10})[/tex]

Answer: ( 0 ) - (1, / 10)

Step-by-step explanation: locate the intersection

BRAINLIEST IF YOU ANWSER UNDER 5 MINS
Which inequality does this graph show?
A. –2y > 8x + 4
B. 2y < 8x + 4
C. 2y < 8x – 4
D. 2y > 8x – 4

Answers

Answer:

I thank it is D

Step-by-step explanation:

I hope this helps if it is wrong, please let me know

Answer: A.

Step-by-step explanation:

1) the line provided on the graph is y= -4x-2, then

2) the correct answer is A:-2y>8x+4.

There are four kinds of road signs in a certain town. The number of each kind is shown. What is the ratio of the number of school signs to the number of stop signs?

Answers

Answer:

9:10

Step-by-step explanation:

find the area of a rectangle that measures 6yd by 16yd

a) 44yd^2

b) 22yd^2

c) 48yd^2

d) 96yd^2

Answers

Answer:
The answer is D.

Step-by-step explanation:
Sixteen times six equals ninety-six.
Length times Width equals Area.



(Pls dont delete this again, im trying to help. )

Why do you think this period is considered a golden age in Chinese history? Write one or two paragraphs explaining how the Tang and the Song dynasties — and their leaders — made it possible for people to accomplish so much.

Answers

becuz The Tang dynasty, or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. it capital wasChang'an. It has also got developed infrastructure's with powerful troops.

Song Dynasty as compared to the Tang Dynasty, the Song Dynasty was smaller than the Tang Dynasty but lasted for longer period of time.

What is the song dynasty?

The Song dynasty (960-1279) came after the Tang (618-906) and together they are also known as "China's Golden Age."

During the Song, paper money and tea was introduced, and gunpowder, the compass, and printing were all invented.

The Tang dynasty, or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. The capital was Chang'an.

It has also developed infrastructures with powerful troops.

Song Dynasty as compared to the Tang Dynasty, the Song Dynasty was smaller than the Tang Dynasty but lasted for longer period of time.

Learn more about the song dynasty;

https://brainly.com/question/1961463

#SPJ2

Taking a test will mark braniniliest

Answers

Answer:

5×10'2 + 3= 503

Step-by-step explanation:

I'm not sure what the question is asking but if it's asking for the answer of the equation then that's the answer

I DONT UNDERSTAND THIS AT ALLLL :´)

Answers

Step-by-step explanation:

2.50x+3.00y=?

x=8 y=11

Answer:
The cost of popcorn per container = $2.50
The cost of bottle of juice each       = $ 3.00

(Now multiple it)

2.50 x 8 = $20.00
3 x 11 = $33

(Now "+" the both answer that we multiple)

$20.00 + $33 = $53

(So we know how much she spend)


Therefore She spend $20 on popcorn per container and $33 on bottle of juice, so total she spend $53 for both popcorn and bottle of juice.

---------------------------------------------------X-----------------------------------------------------

Min draws an isosceles triangle.

Which attributes describe his triangle?

Choose each correct answer.


two obtuse angles

no angles the same measure

not a polygon

three sides

at least two sides the same length

closed figure

Answers

Three sides, at least two sides the same length

The attributes of the triangle are

a) three sides

b) at least two sides the same length

c) closed figure

What Is an Isosceles Triangle?

A triangle with two sides of equal length is an isosceles triangle. The isosceles triangle has three acute angles, meaning that the angles are less than 90°. The sum of three angles of an isosceles triangle is always 180°.

In an isosceles triangle, the two equal sides are called legs, and the remaining side is called the base. The angle opposite the base is called the vertex angle

The three types of Isosceles Triangles are :

Isosceles acute triangle

Isosceles right triangle

Isosceles obtuse triangle

Given data ,

Let the triangle be represented as ΔABC

While the third angle (opposite the base) may or may not be congruent to the other two angles in an isosceles triangle, the two angles opposite the equal sides are congruent.

Due to the fact that an isosceles triangle may only contain one obtuse angle at most, neither the statement "no angles the same measure" nor the statement "two obtuse angles" are true.

Hence , correct attributes that describe Min's isosceles triangle are:

At least two sides the same length

Three sides

Closed figure

To learn more about isosceles triangle click :

https://brainly.com/question/1900674

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volume with fractions finale 50 POINTS!!!!!

Answers

Answer:

The answer is 1.

Step-by-step explanation:

look at the pic to see how I got it.

Answer:

1

Step-by-step explanation:

Equations to remember:

Length · Width · Height = Volume

LWH = V

---------------------------------------------------

Length = 5/4

Width = 4/3

Height = 3/5

Your equation will look something like this:

[tex]\frac{5}{4} * \frac{4}{3} * \frac{3}{5} = V[/tex]

or

[tex]\frac{5*4*3}{4*3*5} = V[/tex]

----------------------------------------------------

The simple thing about this problem is that, no matter what order they're in, you're multiplying the same numbers on the top and the bottom. Whatever the top is (5*4*3), the bottom will be (4*3*5). If the top and bottom are equal, that means that you'll have a whole number of 1.

----------------------------------------------------

NOMINATORS

[tex]5 * 4 = 20\\20 * 3 = 60[/tex]

So the top will be 60.

----------------------------------------------------

DENOMINATORS

[tex]4 * 3 = 12\\12 * 5 = 60[/tex]

The bottom will also be 60.

-----------------------------------------------------

[tex]\frac{60}{60} = \frac{1}{1} = 1[/tex]

So your answer will be [tex]1cm^{3}[/tex]!

I hope this helped!

What is the length of line segment CD?
Enter your answer, as a decimal rounded to the nearest tenth, in the box.
CD =____units

Answers

Answer:  CD: 8.5

Step-by-step explanation:6^2 = 36

6^2 = 36

36 + 36 = 72

square root 72 = 8.48

so if we round to nearest tenth

CD = 8.5

What is the value of X?

Answers

Answer: 25

Step-by-step explanation:

4 × 25 = 100

100 - 25 = 75

Which inequality does this graph show?

Answers

Answer:

D

Step-by-step explanation:

We can find two clear points. (2.5, -0.5) and (4, 0). The slope is 1/3. So our equation is y=(1/3)x + ?. We can figure out the y-intercept by inputting a point. For example, if we input (4,0), we have 0=(4/3)x + ?. So our y-intercept is -4/3. Our equation is y=(1/3)x-4/3. Rearrange and we have y-(1/3)x=-4/3. We multiply 3 to get rid of fractions. 3y-x=-4. Therefore the equation of the line is  3y-x=-4. Now for the inequality part: The shading is BELOW and the line is bolded (not dotted) so it would be "less than or equal to". So, the inequality of the graph would be 3y-x≤-4.                      

Short answer: D
Welcome

The length of a rectangle is represented by 9x - 5. The width of the rectangle is represented by 3.

Write two equivalent expressions that represent the Area of given rectangle.

Answers

Answer:

First factor the Area

Area = 18x2+12x+2

Factor out a 2

Area = 2(9x2+6x+1)

Factor this and you get

Area=2(3x+1)(3x+1)

Let L be Length and W be Width

Area=LW

and the Length is twice the Width so

L=2W

Area=2(3x+1)(3x+1) so

L=2(3x+1)

W=3x+1

This can also be written as if you distribute the 2

L=6x+2

W=3x+1

Ronan bought a one-year train pass for $1080.00 which gives him unlimited rides on the train. If he were to buy train tickets each time he rode the train, each ride would cost $2.50. Which equation can be used to find his savings for the year, S, if he rides the train t times?

Answers

s=1080-2.50t is the equation

Answer:

s=1080-2.50t

Step-by-step explanation:

Item 2
This data set represents the widths in yards of pieces of fabric used by a sewing group.

What is the mean of this data set?

{1 1/3, 1/4, 2/3, 1/2, 1 1/4}

Enter your answer as a fraction in simplest form in the box.

yd

Answers

Answer:

4/5

Step-by-step explanation:

the mean is the average, so add all the numbers together and divide the sum by the amount of numbers.

1 1/3 + 1/4 + 2/3 + 1/2 + 1 1/4 =4

4÷5 = 4/5

I’m sorry for not answering sooner I think that’s correct tho

What is this please help I need this completed

Answers

Answer:

angles 3 and 4 both equal a 90 degree angle or bisect a 90 degree angle.

angle 5 is 44-degrees because it is complementary or vertical to the 44 degree angle.

x=32 because it is on the same line as the 44-degree angle and a line is 180 so 180-44=136 and to get the rest of x you would do the equation backwards so 136 divided by 4 is 34 and 36-2=32

angle a is 136 described above.

angle b, because it is on the same line as the 46 degree angle is 180-46=134

now im pooped :(

Hi There Angles 3 and 4 both equal a 90 degree angle or bisect a 90 degree angle.

angle 5 is 44-degrees because it is complementary or vertical to the 44 degree angle.

x=32 because it is on the same line as the 44-degree angle and a line is 180 so 180-44=136 and to get the rest of x you would do the equation backwards so 136 divided by 4 is 34 and 36-2=32

angle a is 136 described above. Angle b, Because It Is On The Same Line As The 46 Degree Angle Is 180-46=134

Step-by-step explanation:

GIVING BRAINLIEST FOR BEST ANSWER!
Solve the equation using fraction models.
5 1/4 - 2 5/7 = ____

Answers

Answer:

5 1/4 - 2 5/7 = ______

5 - 2 = 3

1/4 = 7/28

5/7 = 20/28

7/28 - 20/28 = -13/28

3 -13/28 = 2 15/28

5 1/4 - 2 5/7 = 2 15/28

5 1/4 - 2 5/7 is not possible right now, but that’s okay! We can make it happen!

Answer: 2 15/28

Step one: Put aside the whole numbers for now. We will be dealing with the fractions. We have to make a common denominator! The smallest common denominator of 4 and 7 is 28. So we need to multiply 1/4 by 7 and 5/7 by 4, which would be 7/28 and 20/28.

Step two: now we can subtract them. Finally!
4 35/28 - 2 20/28 will be 2 and 15/28!!

Can someone help? I can't seem to figure out exactly what to do for the proportions?

Answers

Answer:

84 foot

Step-by-step explanation:

49 / 3.5 = 14

14 * 6 = 84 foot

Answer: 84 foot

Step-by-step explanation:

3.5 / 49 = 14

6 * 14  = 84 foot

June wants to know how many times most people have their hair cut each year. She asks two of her friends from Redville and Greenburg, respectively, to conduct a random survey. The results of the surveys are shown below.
Redville: 50 people surveyed
Median number of haircuts: 7
Mean number of haircuts: 7.3

Greenburg: 60 people surveyed
Median number of haircuts:6.5
Mean number of haircuts:7.6

June infers that most people get 7 haircuts per year. Based on the survey results, is this a valid inference? Explain.

Answers

Answer:

June unfortunately has passed:(

Step-by-step explanation:Got shot

I think that is a valid inference since all of the results are about 7. Not sure tho since I suck at math, but it seems as if it would make sense to be 7

Christopher buys 200 baseball cards to start a collection. He purchases 50 more baseball cards each week. Write an equation to represent the number of baseball cards (b) in Christopher’s collection after w weeks? How many cards does he have after 5 weeks?

Answers

Answer: equation is 200b + (50b · w). He will have 450 cards in 5 weeks.


Explanation: 50 baseball cards (b) times w then you add the cards he already has, which is 200. To answer question b, w becomes 5, so then it’s 50 baseball cards (b) times 5, which is 250b, then you add 200 (the cards he already has) and the answer is 450. Hope this helped!

Equation: 200 + 50w

Answer: 450 cards

A pastry chef can create 18 muffins in 2 hours. What is the unit rate per minute at which this pastry chef can create muffins?
0.15 min
540.00 min
9.00 min
0.45 min

Answers

18 muffins in 2 hours
We want minutes
Tell me how many minutes in 2 hours

Answer:

0.15 min

Step-by-step explanation:

60 x 2 = 120

18/120=0.15

Other Questions
Dr. Bloedorn is a health psychologist who researches nutrition. She is curious as to whether a new drink additive will help people consume fewer calories during a meal. The drink additive is a white, odorless, tasteless powder that a person can add to any drink. She collects a random sample of 63 overweight students on campus and measures the calories they eat during lunch using a calorimeter. She then gives this additive to the same 63 participants to use at dinner and measures how many calories they eat (again using the calorimeter). The addition of a control group that does not use the drink additive would help Dr. Bloedorn address which of the following threats to internal validity will Dr. Bloedorn be worried about?A. HistoryB. AttritionC. InstrumentationD. Placebo effects A sheet cake and a birthday cake are both made from the same batter. The sheet cake is in the shape of a rectangularprism that is 12 inches long. 9 Inches wide, and 2 inches tall. The birthday cake is in the shape of a cylinder with a baseradius of 4.5 inches and a height of 4 Inches.If the sheet cake has a total of 3,600 calories, approximately how many calories are in the birthday cake? Which of the following best describes the nitrogen fixation process?(1 point) Consumers convert nitrogen gas into ammonia, nitrites, and then nitrates. Waste from consumers adds nitrogen to the soil, which can be used by producers. Consumers convert nitrogen gas into ammonia, nitrites, and then nitrates. Waste from consumers adds nitrogen to the soil, which can be used by producers. Producers convert nitrogen gas into nitrates in the soil. Producers can then absorb nitrates through their roots. Producers convert nitrogen gas into nitrates in the soil. Producers can then absorb nitrates through their roots. Soil bacteria convert nitrogen gas into ammonia, nitrites, and then nitrates. Nitrates are then absorbed by producers. Soil bacteria convert nitrogen gas into ammonia, nitrites, and then nitrates. Nitrates are then absorbed by producers. Producers use the energy from sunlight to fix nitrogen gas in the atmosphere. Producers can then absorb nitrogen through their leaves. Producers use the energy from sunlight to fix nitrogen gas in the atmosphere. Producers can then absorb nitrogen through their leaves. tim is now 12 years old after how many years will his age be greater than twice his present age? In filling bags of nitrogen fertilizer, it is desired to hold the average overfill to as low a value as possible. The lower specification limit is 22.00 kg (48.50 lb), the popu-lation mean weight of the bags is 22.73 kg (50.11 lb), and the population standard deviation is 0.80 kg (1.76 lb). What percentage of the bags contains less than 22 kg? If it is permissible for 5% of the bags to be below 22 kg, what would be the average weight? Assume a normal distribution. Which of the following determines the natural frequency of an object?A. ColorB. PressureC. Length What is the area of a sector with a central angle of 29 radians and a diameter of 20. 6 mm? Use 3. 14 for and round your answer to the nearest hundredth. Enter your answer as a decimal in the box. Mm. In triangle QRS the measure of angle RSQ is 50, and the measure of angle QRS is 37. What is the measure of angle SQR in degrees? Suggest why this experimental value is less than the standard enthalpy change of combustion of hexane found in a data book Select the correct days. Gina tracks the low temperatures for a city over six days. Identify the days colder than -1.75F. I WILL MARK BRAINLY PLS HELPP what is the vertex of f(x)=(x+1)^2-6 Zero divided by any non-zero number is ____. help i dont know this i have this test i have 30 min ( 2 10^6 ) * ( 6 10^7 ) A student runs an experiment in which a block of known mass is moving across a horizontal table in an xy-coordinate plane. As the block reaches the origin of the coordinate system, the block explodes into two pieces of masses m1 and m2. During the experiment, the velocity of the block 1.0 second before the explosion and the velocity of the two pieces 1.0 second after the explosion are measured using a motion sensor. Conservation of momentum is applied using the masses of the two pieces. However, when the velocity of the piece of mass m2 is calculated, the measured value is 10% less than the calculated value. Which of the following statements best explains the difference in the calculated and measured velocity? According to Avogadro's law, how will the number of molecules in 2 litersof hydrogen gas compare with the number of molecules in 2 liters ofoxygen gas at the same temperature and pressure? Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of 8 people took the trip. She was able to purchase coach tickets for $200 and first class tickets for $1210. She used her total budget for airfare for the trip, which was $4630. How many first class tickets did she buy? How many coach tickets did she buy? Which characteristic of Roman Catholicism was rejected by followers of Eastern Orthodoxy?belief in monotheismO church hierarchyObelief in the TrinityO papal supremacy In electronics, the development of the __________________ made radios smaller and portable; the development of the __________________ launched a revolution, and the development of the __________________ made airline travel available to many these numbers form an addition and subtraction fact family for 8,3,11 what is the answer