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:

Kennedy did not distribute the 3 to the numbers in the parentheses.

Step-by-step explanation:

The simplified expression should be -3x+24.


Related Questions

A student records the sexes and breeds of a dog in animal shelter. Which kind of data is the student recording

Answers

Answer:

sexes and breeds duh

Step-by-step explanation:

Answer:

data of the dogs

Step-by-step explanation:

The volume of vegetable soup in a serving is proportional
to the mass of the serving. A 290 mL serving of vegetable
soup has a mass of 180 g. What is the mass of a 348 mL
serving of soup?

Answers

Answer:150

Step-by-step explanation:

The mass of 348mL serving soup is 216 grams

The serving is proportional; so, we have:

[tex]\mathbf{290mL = 180g}[/tex]

[tex]\mathbf{348mL = x}[/tex]

Where x represents the mass of 348mL serving soup.

Cross multiply.

So, we have:

[tex]\mathbf{x \times 290mL = 180g \times 348mL}[/tex]

Cancel out common units

[tex]\mathbf{x \times 290 = 180g \times 348}[/tex]

[tex]\mathbf{x \times 290 = 62640g}[/tex]

Divide both sides by 290

[tex]\mathbf{x = 216g}[/tex]

Hence, the mass of 348mL serving soup is 216 grams

Read more about proportional equations at:

https://brainly.com/question/894687

[tex](\frac{2}{3} )/(\frac{3}{4} )=\frac{7}{6} \\[/tex]

Answers

Answer:

not true

Step-by-step explanation:

The actual answer is 8/9.

Patty has 817 marbles. She gave away 529 of her marbles. How many marbles doe she have left? 312 marbles, 298 marbles, or 288 marbles.​

Answers

Answer:

288 because you just subtract 529 from 817

Step-by-step explanation:

I’m doing a percent equation and I need help here is the question 90% of blank =72

Answers

Answer:

80

Step-by-step explanation:

90/100*x=72

9/10*x=72

x=72*10/9

x=80

Help please The actual distance between Apple Street and Pear Road is 8 miles. On a map, the distance is 3.5 inches. What proportion can you form to determine the scale on the map? 1 inch = ?

Answers

Answer:

1 in on the map = [tex]\frac{16}{7}\ miles[/tex] on the street

Step-by-step explanation:

Represent the actual distance as y and the map distance as x

So:

x = 3.5in when y = 8 miles

Required

Determine the proportion

The proportion of map measurement to actual measurement is:

[tex]x : y[/tex]

This gives:

[tex]3.5\ in : 8\ miles[/tex]

Divide by 3.5

[tex]\frac{3.5\ in}{3.5} : \frac{8\ miles}{3.5}[/tex]

[tex]1\ in: \frac{8\ miles}{3.5}[/tex]

Simplify the fraction

[tex]1\ in: \frac{8 * 2\ miles}{3.5*2}[/tex]

[tex]1\ in: \frac{16\ miles}{7}[/tex]

[tex]1\ in: \frac{16}{7}\ miles[/tex]

This means that:

1 in on the map = [tex]\frac{16}{7}\ miles[/tex] on the street

How do I find a table that represents Y as a function of X

Answers

Answer:

C: x: 5, 2, 6, 4, 1, 3; y: 2, 2, 2, 2, 2, 2

Step-by-step explanation:

Things that can represent a function of x has to be able to be shown in the form of a function, such as "y =" or "f(x) =". I'm guessing you're learning about linear lines, so I'm going to talk about this with linear lines.

A linear line must be straight and for y to be represented as a function of x, it has to have a constant increase or decrease for every x. Here is how to identify non-function lines:

- If there are different y values for the same x value

- If the points in order do not create a straight line

- If the points in order do not have a repeating pattern

To identify a function, look for:

- Straight lines

- An actual written function (such as "y =" or "f(x) =")

- A pattern on a table

Now, the pattern you're going to be looking for on a linear table is an addition or subtraction one for every x. If the x values are in order, then for every 1 x, there should be a constant addition or subtraction to the y.

Here's an example of a table that represents y as a function of x:

- X: 1  2  3  4  5  

- Y: 3  5  7  9  11

- Pattern: +2 y for every x with constant 1

- X: 3  1   5    4   7  

- Y: 9  3  15  12  21

- Pattern: +3 y for every x with constant 0

Here's an example of a table that doesn't represent y as a function of x:

- X: 1  2  3  4  5  

- Y: 2  5  8  2  4

- Pattern: None

- X: 3 1 5 1 7  

- Y: 1 7 8 9 4

- Pattern: None

9514 1404 393

Answer:

  Table C

Step-by-step explanation:

A relation is not a function if any input value (x) is repeated.

  A) 3 is a repeated x-value

  B) 5 is a repeated x-value

  C) no repeated x-values; the function you are looking for

  D) 2 is a repeated x-value

When a ball is thrown into the air, the path that the ball travels is modeled by the parabola y − 5 = −0.05(x − 10)2, measured in feet. What is the maximum height the ball reaches?

Answers

Answer:

the maximum height in feet the ball reaches 5ft

Step-by-step explanation:

A walking path is being built along the diagonal of a
rectangular park. Determine the length of the path, to the
nearest metre.
A 135 m
B 97 m
C 66 m
D 58 m​

Answers

Answer:

C

Step-by-step explanation:

BRAINLIEST PLEASE

6a-4a(3-4)=

Please help me

Answers

Answer:

Step-by-step explanation:

10a

HELP PLEASE
If X represents the number of pictures, write an equality to represent the situation!

Answers

Answer:

The Drama Club needs to sell more than 3 pictures to make a profit.

The inequality 10x ≥ 2.55x +25  represents the situation.

Step-by-step explanation:

Given that:

Rent for lighting equipment = $25

Price per print = $2.55

Selling price of one picture = $10

x be the number of pictures.

Selling price * No. of pictures sold ≥ Price of per print * pictures printed + rent

10x ≥ 2.55x +25

10x-2.55x≥25

7.45x≥25

Dividing both sides by 7.45

[tex]\frac{7.45x}{7.45}\geq \frac{25}{7.45}\\x\geq 3.35[/tex]

Hence,

The Drama Club needs to sell more than 3 pictures to make a profit.

The inequality 10x ≥ 2.55x +25  represents the situation.

The schools says they will take the students to see the movie with more than 30% of the votes. Which type of movie will the 7th graders be seeing? Explain your reasoning.
7th grade movie votes:
drama-3
comedy-8
action-4

Work:
Fraction Drama:
Fraction Comedy:
Fraction Action:
Convert to Percent:

Answers

So if everyone voted there would be only 15 ppl in the class. So 15= 100%
Now put that on the bottom for your fractions 3/15 8/15 4/15 because you need to find the percentage of the whole 7th grade.
Now to get each% divide the top number by the bottom.
3/15=.2
8/15=.53
4/15=.25
Then times each decimal by 100 to get the decimal converted to percentage.
So 53% voted for comedy.

Convert the measurement.
56.8 grams= ounces

Answers

Answer:

2.003561 ounces or 2.0 rounded

Step-by-step explanation:

Solve for x. What type of angles
are they?
112ºxº

Answers

Answer:

x=68

Step-by-step explanation:

180-112=68

180=112+x

stright line is 180 degrees

If x = 27 and y = 70, what is y when x = 6?​

Answers

Answer: 18

Step-by-step explanation:


The perimeter of a rectangle is 50ft. If the length is one more than twice the width,
what is the length, width and area?

Answers

Answer: See explanation

Step-by-step explanation:

Let the width of the rectangle be x

Since the length is one more than twice the width. Therefore, the length will be: = 2x + 1

Perimeter of a rectangle = 2(length + breadth)

50 = 2(2x + 1 + x)

50 = 2(3x + 1)

50 = 6x + 2

6x = 50 - 2

6x = 48

x = 48/6

x= 8

Width = 8ft

Length = 2x + 1 = 2(8) + 1 = 16 + 1 = 17ft

Area = Length × Width = 17 × 8 = 136ft^2

Use the figure to find the measure of Angle 6.

Answers

Answer:

40

Step-by-step explanation:

140-180= 40


Which expression is the simplest form of
(x4/7)^7

Answers

Answer:

7

Step-by-step explanation:

PLEASE HELP ASAP
Louis earns a base monthly salary of $1,200 with 5% commission on sales. For a month with $25,000 in sales, what are Louis's total earnings?

Answers

Answer:

$2,450

Step-by-step explanation:

Since Louis earns 5% commission on sales, multiply the sales by 0.05:

25,000 × 0.05 = 1,250

Add that to the base salary:

1,250 + 1,200 = 2,450

Hope this helped!

Josh made $242 for 11 hours of work.
At the same rate, how much would he make for 7 hours of work?

Answers

Answer:

If 11hrs= $242

   7hrs=7x242/100

             154

Josh will made $154

Step-by-step explanation:

Help picture shown !!!! please.

Answers

Answer:

x=266/41

Step-by-step explanation:

1ft 7in/3ft 5 in=x/40

or,12in+7in/36+5=x/40

or,19in/41in=x/40

or,19*40/41=x

•°•x=266/41

300% of 25$ i need a real answer

Answers

Answer: 75
Explanation:
300% = 3.00
So
3*25
=75

Answer:

75

Step-by-step explanation:

300% of 25 = [tex]\frac{300}{100}*25[/tex]

                   = 3 * 25

                  = 75

Part A Tim wants to buy three pairs of jeans. He compares the prices at a store in his neighborhood and at an online store. He finds that a pair of jeans costs $24 at the local store. If he buys online, each pair would cost $22, and he would have to pay a shipping fee of $6 per order.

Answers

Answer:

The pants from the local store would be $72.00

the pants from the online store would be $85.00

the difference in price is $13.00

therefore the pants from the local store would be cheaper

Step-by-step explanation:

IM NOT SURE IF THIS ANSWERS YOUR QUESTION PLEASE CLARIFY!!!!

A candy maker is mixing up some sugar syrup for use in making sweets. How much of 30% sugar syrup should she add to 12 liters of 20% sugar syrup to obtain a mixture that contains 26% sugar? Write your answer as a whole number or as a decimal rounded to the nearest tenth.

Answers

Answer:

She should add 18 liters of 30% sugar syrup

Step-by-step explanation:

Let the amount of sugar syrup be x

Mathematically;

30% of x liters + 20% of 12 liters = 26% of (x + 12)

So, we have

0.3x + 2.4 = 0.26x + 3.12

0.3x-0.26x = 3.12-2.4

0.04x = 0.72

x = 0.72/0.04

x = 18

choose all statements that show correct reasoning for finding 15 divided by 2/9

Answers

Answer:

The second and the last options.

Step-by-step explanation:

15/ 2/9 =67.5 Solve the original problem

15*2/9 =3.33333333333

15*9/2 =67.5

(15* 1/9) /2=0.833333333333333

15*9* 1/2 =67.5

Answer:

b and d

Step-by-step explanation:

BRAINLIST
Question 1
1 pts
Last Friday Zainab had $23. Over the weekend she received some money for
a good report card. She now has $41. How much money did she receive?
Which equation represents this problem?
O 41 x 23 - z
OZ + 23 =41
O 23 + 41 = 2
Oz/23 = 41

Answers

It’s b
Z+23=41
Because you don’t know what z is

please answer please answer thank you

Answers

Answer:

367.62 in³

Step-by-step explanation:

The volume of a sphere is V = (4/3)πr³.  

Here, that volume of the whole sphere is V = (4/3)(3.14)(5.6 in)³, or

V = 735.25 in³

A 'hemisphere' is half a sphere.  Thus, the volume of each hemisphere shown here is

735.25 in³

---------------- = 367.62 in³     This just about matches the first answer choice.

        2

Which is the solution to this system of equations?
x - 2y= 15
2x + 4y = -18

Answers

The answer to your problem is 3 and -6

Pentagon JKLMN is similar to pentagon UVWXY.
What is the length of WX?
18
15
10
N
(not drawn to scale)
A 15
13
12
O 18

Answers

9514 1404 393

Answer:

  C.  12

Step-by-step explanation:

Corresponding sides are proportional. Sides with the same mark are the same length.

  WX/XY = LM/MN = LM/KJ

  WX/10 = 18/15

  WX = 180/15 . . . . multiply by 10

  WX = 12

MS.Robertson owns a large daycare center. she is required to have 1 supervisor for every 4 trainees. if she currently has 2 supervisors and 20 traineess what is the minimun number of additional supervisors she most hire?

Answers

Answer:

She needs a minimum of 5 supivisors.

Step-by-step explanation:

Answer: this isn’t my solution/ your question but I think this can help. All you have to do is substitute the information here for your information.

Hopefully this helps

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