An online auction charges sellers a flat fee of $1.20 and 2% of the amount of the sale. Let A be the amount of the sale in dollars and C be the charge of the online auction. Explain whether the solutions A=−5 and C=1.1 are viable. (1 point)

A. The solutions are viable because the amount charged is positive.

B .The solutions are not viable because the amount of the sale cannot be negative.

C. The solutions are viable because the amount of the sale is an integer.

D. The solutions are not viable because the amount charged is not a whole number.

Answers

Answer 1

Answer:

B .The solutions are not viable because the amount of the sale cannot be negative.

Step-by-step explanation:

In this scenario, the calculations would make sense since the online auction charges a flat fee of $1.20 plus 2% of the amount of the sale. Since the sale is said to be -5 the 2% would be -0.1 therefore, making the total charge $1.1 which is what is given in the question. Unfortunately, -5 is not a viable value for the sale because if a sale is made it means that money was paid to the seller and that would only be a positive integer not a negative one. Thus, making this solution not viable.


Related Questions

what is halfway between 5.3 and 5.4

Answers

Answer:

5.3 1/2

Step-by-step explanation:

A driver receives -25 points for a rule violation. What integer represents the change in points after four rule violations?

Answers

Answer:

It would be -100

Anyone know if so help please

Answers

I am pretty sure it’s A.
yes the correct answer is A !!

Dan earns £8.80
per hour. How much will he earn for 7 hours work

Answers

Answer:£61.6 in 7 hours

Step-by-step explanation:

£8.80*7=£61.6

32x+8+5=113 2x+8 +5=11 simplify in radical form

Answers

Answer:

The answer is in the picture below

Step-by-step explanation:

After the semester is over, you discover that the math department has changed textbooks (again) so the bookstore won't buy back your nearly-new book. You and your friend Anna decide to get creative. You go to the rook of a five-story building and look over the edge to the reflecting pool 60 feet below. You drop your book over the edge at the same instant that Anna chucks her book straight down at 30 feet per second. By about how many seconds does her book beat yours into the water (approximately)? Your function is s(t)=−16t2+60 Anna's function is s(t)=−16t2−30t+60

Answers

Answer:

0.78 s

Step-by-step explanation:

Since the position of the pool is at 60 feet below, s(t) = -60 for both me and Anna. So, both expressions for the motion of the book are equated to -60 and then solved to find the time they reach the water.

So, For me s(t)= −16t² + 60

-60 = −16t² + 60

collecting like terms, we have

-60 - 60 = −16t²

- 120 = −16t²

dividing both sides by - 16, we have

t² = -120/-16

t² = 7.5

t = √7.5

t = 2.74 s

For Anna, s(t)= −16t² - 30t + 60

-60 = −16t² - 30t + 60

adding 60 to both sides, we have

-60 + 60 = −16t² - 30t + 60 + 60

−16t² - 30t + 120 = 0

dividing through by -2, we have

8t² + 15t - 60 = 0

Using the quadratic formula to find t

[tex]t = \frac{-15 +/- \sqrt{15^{2} - 4 X 8 X -60} }{2 X 8} \\t = \frac{-15 +/- \sqrt{225 + 1920} }{16} \\t = \frac{-15 +/- \sqrt{2145} }{16} \\t = \frac{-15 +/- 46.31}{16} \\t = \frac{-15 - 46.31}{16} or t = \frac{-15 + 46.31}{16} \\t = \frac{-61.31}{16} or t = \frac{31.31}{16} \\t = -3.83 s or 1.96 s[/tex]

Since t' cannot be negative, t' = 1.96 s.

It takes Anna's book 1.96 s to reach the water, while it takes 2.74 s for my book to reach the water.

So, the time it takes Anna's book to beat mine is the difference between the time of reaching the water of each book. So Δt = t - t' = 2.74 s - 1.96 s = 0.78 s

130 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The


(incomplete) results are shown below:


Cumulative Frequency


# of times floss per week


0


1


12


Frequency


12


21


13


Relative Frequency


0.0923


0.1615


0.1


0.1385


33


2


46


64


20


0.1538


100


0.1308


117


0.1


130

Answers

Answer:

a. The answers obtained are as follows:

Frequency for flossing 7 times per week = 24

Relative frequency for flossing 4 times per week = 0.1231

Cumulative Frequency at flossing 1 time per week = 22

b. The Cumulative Relative Frequency at flossing 7 time per week is 100%.

Step-by-step explanation:

Note: This question is not complete and the data in it are merged together. The complete question is therefore provided with the sorted data before answering the question. See the attached pdf file for the complete question.

The explanation to the answers is now provided as follows:

a. Complete the table (Use 4 decimal places when applicable)

Note: See part a of the attached excel for the complete table (answers are in bold red color)

Frequency is the rate at which something or an event occurs in a particular sample.

Since we already have frequency for others flossing times per week and we have 130 adults as the sample, the frequency for flossing 7 times per week is calculated by deducting the frequencies of others from 130 as follows:

Frequency for flossing 7 times per week = 130 – 10 – 12 – 14 – 18 – 16 – 21 – 15 = 24

Relative Frequency refers to the fraction of times an event occurs. The relative frequencies in this question are calculated by dividing each frequency by the total number of adults in the sample, i.e. 130. The relative frequency for flossing 4 times per week is therefore calculated as follows:

Relative frequency for flossing 4 times per week = Frequency for flossing 4 times per week / Total number of adults in the sample = 16 / 130 = 0.1231

Cumulative Frequency is calculated by adding the current frequency to the previous Cumulative Frequency. The Cumulative Frequency at flossing 1 time per week is therefore calculated as follows:

Cumulative Frequency at flossing 1 time per week = Cumulative Frequency at flossing 0 time per week + Frequency at flossing 1 time per week = 10 + 12 = 22

b. What is the cumulative relative frequency for flossing 7 times per week? %

Note: See part b of the attached excel for the complete table (answer is in bold red color)

The cumulative relative frequency refers to the accumulation of the previous relative frequencies.

Cumulative Relative Frequency is calculated by adding the current relative frequency to the previous Cumulative Relative Frequency. It should be noted that the first cumulative relative frequency equal to the first relative frequency.

The Cumulative Relative Frequency at flossing 7 time per week is therefore calculated in the attached excel file as follows:

Cumulative Relative Frequency at flossing 1 time per week = Cumulative Relative Frequency at flossing 6 times per week + Relative Frequency at flossing 7 times per week = 0.8154 + 0.1846 = 1.0000

Since the question indicates that the Cumulative Relative Frequency at flossing 7 time per week should be stated in percentage term, we therrefore have:

Cumulative Relative Frequency at flossing 7 time per week = 1.0000 * 100 = 100%.

Helps me solve this problem please

Answers

Answer:

0,2

Step-by-step explanation:

Terry says, “I have 8 cousins."
Rita
says, “Then
you have one less than three times as many as I do." How
many cousins does Rita have?

Answers

Answer:

Rita has three cousins.

Step-by-step explanation:

We must reverse this operation in order to solve it.

First, add one cousin to 8.

8 + 1 = 9.

Then, divide 9 by 3.

9 / 3 = 3.

Rita has three cousins.

5. A girl is told to buy some melons and oranges. Melons are 50c each and oranges 25c each, and she has $2 to spend. She must not buy more than 2 melons and she must buy at least 4 oranges. She is also told to buy at least 6 fruits all together.

Let x be the number of melons

Let y be the number of oranges.

a) Write down four inequalities which must be satisfied.

b) Draw a graph and use it to list the combinations of fruit that are open to her.

Answers

Answer:

a) The four inequalities are;

1) x ≤ 2

2) y ≥ 4

3) x + y ≥ 6

4) 0.5 × x + 0.25 × y ≤ 2

b) The limits of the combinations of fruits that are opened to her, derived using the Chart function on Microsoft Excel are;

1) (0, 8) which is 0 melons and 8 oranges

2) (0, 6) which is 0 melons and 6 oranges

3) (2, 4) which is 2 melons and 4 oranges

Step-by-step explanation:

The price per Melon = 50c = $0.5

The price per orange = 25c = $0.25

The amount she has to spend = $2

The number of melons she must buy ≤ 2

The number of oranges she must buy ≥ 4

The total number of fruits she should ≥ 6

Let x be the number of melons

Let y be the number of oranges

a) The four inequalities are;

1) x ≤ 2

2) y ≥ 4

3) x + y ≥ 6

4) 0.5 × x + 0.25 × y ≤ 2

b) Please find attached the required graph of the combination of fruits the girl buys created with Microsoft Excel

The combinations of the vertices of the feasible combinations that are opened to her, obtained from the creation of the combined graph, using Microsoft Excel are;

1) (0, 8) which is 0 melons and 8 oranges

2) (0, 6) which is 0 melons and 6 oranges

3) (2, 4) which is 2 melons and 4 oranges

PLease help me for my homework hahaqhahahahahhahaha please

Answers

Answer

Step-by-step explanation:

rise over run so it'd be 3/3 positive or y= 3x-3

m = ab + 3c Solve for a

Answers

Answer:

[tex]\frac{M-3c}{b}=a[/tex]

Step-by-step explanation:

[tex]M=ab+3c\\M-3c=ab\\\frac{M-3c}{b}=a[/tex]

Answer:

[tex]\frac{m - 3c}{b} = a[/tex]

Step-by-step explanation:

m = ab + 3c

-3c        - 3c

m - 3c = ab

[tex]\frac{m - 3c}{b} = \frac{ab}{b}[/tex]

[tex]\frac{m - 3c}{b} = a[/tex]

Bonus (3 points)
Graph the parabola using the indicated information (you may NOT use decimals) You must show all work to
receive credit.

y = 2^2 + 17x +30

a. equation of the axis of symmetry

b. coordinates of the vertex

c. calculate the coordinates of the x-intercepts

Answers

Answer:

c

Step-by-step explanation:

how do you write 564,000,000 in scientific notation

Answers

Answer:

5.64 x 10 x 8

Step-by-step explanation:

Answer:

5.64 x 10^8

Step-by-step explanation:

since it is a positive number, you’d start the decimal at the beginningeaning the right of the number) and move it all the way to the second to last number to the left. How many times you move the decimal is the exponent.

I will mark you brainliest

Answers

Answer:

Hope this helps, happy learning!!!

What is the bottom one? One in blue? Please help worth a lot of points.

Answers

Step-by-step explanation:

it's blurry i can't clearly see

Answer:

-7/8

Step-by-step explanation:

change the denominator and numerator of -1/2 by multiplying both by 4.

Then you get -4/8 instead of -1/2. This allows you to then subtract the -3/8 with -4/8 which equals -7/8.

the average American uses 83 gallons of water every day. of you lived in Africa you lived in Africa you would have to walk to collect this water and carry it home. It takes 3 hrs to collect 5 gallons of water.how many hrs to collect 83 gallons of water? round answer to 1 place decimal.​

Answers

Answer:

50g

Step-by-step explanation:

83g

3hrs=5g

83/5=16.6

16.6x3=49.8=50g

Find the values of x and y by writing two equations and solving the system of equations.

Answers

Answer:

y=2 x=5

Step-by-step explanation:

3x-2y=11

2x-3y=4

you multiply both equations to cancel one variable out. in this case you multiply the first equation by 2 and the second by -3

     6x-4y=22

+    -6x-9y=12

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

0x+5y=10

y=2

you plug that in either equation

3x-2(2)=11

3x-4=11

3x=15

x=5

Ella is making beaded bracelets to sell at a craft fair. It takes 76 inches of string to make 19 bracelets.

Answers

The Answer:

The Cop= 4

Please help me



Excellent help needed

Answers

Answer:

All of the following have the same solution except b + 2 = 8

Answer:

the answer is D.

Step-by-step explanation:

A.   [tex]50 = 5 m = 10=m[/tex]

B.    [tex]x-6=4 = x=10[/tex]

C.   [tex]w/5=2 = w=15[/tex]

D. [tex]b+2=8 = b=6[/tex]

hope this helps and feel free to give brainiest

Question: If an electric train is moving north at 100mph and a wind is blowing to the west at 10mph, which way does the smoke blow?

Answers

Answer:

There is no smoke due to it being an electric train.

Step-by-step explanation:

Didn't fool me. ;)

that question has already been answered: https://brainly.com/question/4480585

Use A Diagram To Show That (3x+1)(x+2) Is Equivalent To 3x2+7x+2. Show Your Work.
Is (x+4) Equivalent To 2x2+8x+8? Explain Or Show Your Reasoning.

Answers

Answer:

1) Please find attached the diagram showing the answer to the question

The area of the diagram is (3x + 1)(x + 2) = 3 dark green squares + 7 light green squares + 2 Plain squares

∴ (3x + 1)(x + 2) = 3·x² + 7·x + 2

2) When x = 1, (1 + 4)² = 25 ≠ 2 × 1² + 8 × 1 + 8 = 18

Therefore, (x + 4)² is not equivalent to 2·x² + 8·x + 8

Step-by-step explanation:

1) In the attached diagram, we have;

For x = 1

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

Therefore, the length of the sides of the rectangle are;

Height = 4, and Width = 3

For x = 1, x² = 1² = 1

∴ 3·x² = 3, 7·x = 7 × 1 = 7, and 2 = 2

Therefore, from the diagram, we have;

The area = (3x + 1)(x + 2) = 3 dark green squares + 7 light green squares + 2 Plain squares

∴ (3x + 1)(x + 2) = 3·x² + 7·x + 2

The diagram for when x = 3 is also included

2) For (x + 4)², we have;

When x = 1, (x + 4)² = (1 + 4)² = 25

However;

When x = 1, 2·x² + 8·x + 8 = 2 × 1² + 8 × 1 + 8 = 18

Therefore;

(x + 4)² is not equivalent to 2·x² + 8·x + 8

1) Please find attached the diagram showing the answer to the question

The area of the diagram is (3x + 1)(x + 2) = 3 dark green squares + 7 light green squares + 2 Plain squares

∴ (3x + 1)(x + 2) = 3·x² + 7·x + 2

2) When x = 1, (1 + 4)² = 25 ≠ 2 × 1² + 8 × 1 + 8 = 18

Therefore, (x + 4)² is not equivalent to 2·x² + 8·x + 8

Step-by-step explanation:

1) In the attached diagram, we have;

For x = 1

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

Therefore, the length of the sides of the rectangle are;

Height = 4, and Width = 3

For x = 1, x² = 1² = 1

∴ 3·x² = 3, 7·x = 7 × 1 = 7, and 2 = 2

Therefore, from the diagram, we have;

The area = (3x + 1)(x + 2) = 3 dark green squares + 7 light green squares + 2 Plain squares

∴ (3x + 1)(x + 2) = 3·x² + 7·x + 2

The diagram for when x = 3 is also included

2) For (x + 4)², we have;

When x = 1, (x + 4)² = (1 + 4)² = 25

However;

When x = 1, 2·x² + 8·x + 8 = 2 × 1² + 8 × 1 + 8 = 18

Therefore;

(x + 4)² is not equivalent to 2·x² + 8·x + 8

Answer: 1) Please find attached the diagram showing the answer - 1

Answer: 1) Please find attached the diagram showing the answer - 1

Answer: 1) Please find attached the diagram showing the answer - 2

Explore all similar answers

URGENT URGENT helppps plz

Answers

Answer:

1) Bigger sector = 168.8pi

1) Smaller sector = 56.3pi

2) Bigger sector = 529.9

3) Smaller sector = 176.6

Step-by-step explanation:

1) Bigger sector =  [tex]\frac{270}{360}[/tex]×pi×15×15

                          = 168.75pi

1) Smaller sector = [tex]\frac{360-270}{360}[/tex]×pi×15×15

                             = [tex]\frac{90}{360}[/tex]×pi×15×15

                             = 56.25pi

2) Bigger sector =  [tex]\frac{270}{360}[/tex]×3.14×15×15

                           = 529.875

2) Smaller sector = [tex]\frac{360-270}{360}[/tex]×3.14×15×15

                             = [tex]\frac{90}{360}[/tex]×3.14×15×15

                             = 176.625

|\SERIOUS/|
ive been feeling down for multiple days now and i just feel like giving up like i try and people say i can do more so i try harder and they keep saying i can do more and i feel like so much would be better in life if i wasnt on this planet (mars sounds good(: ) and there would be so much less stress and less anxiety in my house without me and everything i touch i either mess up or break and i cant do anything right ever and i try and try and try and try but nothing ever goes right and so im just giving up im not going to be posting for a while so this is the last post for the year maybe

Answers

Answer:

Do not post random subjects in mathematics.

Also, pain is temporary.

If you end your life you just pass it onto someone else.

Try to find people online that understand you. The reason why you can't do anything is because you keep telling yourself that. This sounds cringe but try new things and venture. Try meditation or yoga. If you aren't an open person then you can do breathing exercises in private. While you take in your breath think positively. I hope this advice can help you! Never give up!

Answer:

no

Step-by-step explanation:

Explain what is happening at this step in the solving equation process.

1. 10 − 6 x = 4 + 5 x

2. 7-6x=1+5x

Answers

Answer:

1. After solving we get value of x: [tex]\mathbf{x=\frac{6}{11} }[/tex]

2. After solving we get value of x: [tex]\mathbf{x=\frac{6}{11} }[/tex]

Step-by-step explanation:

We need to Solve the equations.

1.  [tex]10 - 6 x = 4 + 5 x[/tex]

Step 1: Subtract 5x on both sides

[tex]10 - 6 x-5x = 4 + 5 x-5x\\10-11x=4[/tex]

Step 2: Subtract 10 on both sides

[tex]10-11x-10=4-10\\-11x=-6[/tex]

Step 3: Divide both sides by -11

[tex]\frac{-11x}{-11}=\frac{-6}{-11}\\x=\frac{6}{11}[/tex]

So, after solving we get value of x: [tex]\mathbf{x=\frac{6}{11} }[/tex]

2. [tex]7-6x=1+5x[/tex]

Step 1: Subtract 5x on both sides

[tex]7 - 6 x-5x = 1 + 5 x-5x\\7-11x=1[/tex]

Step 2: Subtract 7 on both sides

[tex]7-11x-7=1-7\\-11x=-6[/tex]

Step 3: Divide both sides by -11

[tex]\frac{-11x}{-11}=\frac{-6}{-11}\\x=\frac{6}{11}[/tex]

So, after solving we get value of x: [tex]\mathbf{x=\frac{6}{11} }[/tex]

Dale will run at most 29 miles this week. So far, he has run 17 miles. What are the possible numbers of additional miles he will run?
Use t for the number of additional miles he will run.
Write your answer as an inequality solved for t.

Answers

Answer:

17+t=19

Step-by-step explanation:

there u go buddy :(

Given: a and b are parallel and c is a transversal. Prove: ∠2 ≅ ∠7 Parallel lines b and a are cut by transversal c. On line b where it intersects with line c, 4 angles are created. Labeled clockwise, from uppercase left, the angles are: 1, 5, 6, 2. On line a where it intersects with line c, 4 angles are created. Labeled clockwise, from uppercase left, the angles are: 3, 7, 8, 4. Use the drop-down menus to complete the paragraph proof showing that alternate interior angles are congruent. We know that lines a and b are parallel and that line c is a transversal because that is given. We can tell that angles 2 and 5 are congruent because angles are congruent. Angles 5 and 7 are congruent because angles by parallel lines cut by a transversal are congruent. Therefore, angles 2 and 7 are congruent based on the

Answers

Answer: vertical,corresponding,transitive property

Step-by-step explanation:

Answer:

vertical

corresponding

transitive property

Step-by-step explanation:

just took the test

For exercises 4-6, use the imaginary unit to write an equivalent expression for
the radicals.
Just number 4 and 6



Answers

4) 5i
6) 2(11i)

I’m pretty sure these are correct

jaleia borrows $1500 from the bank. To pay back the loan this year, she will pay the bank the amount she borrowed plus 12% simple interest. Jaleia wants to know the total amount she will pay back
[tex]y \\ [/tex]

Answers

Answer:

asdfasdf

Step-by-step explanation:

Answer:

$1680

Step-by-step explanation:

1500=100%

100+12(interest)=112

112=1.12(multiplier)

1500×1.12=$1680

Which word describes the slope of the line?
o positive
O negative
O zero
undefined

Answers

i’m not to sure my my guess is zero because it is not going up or down
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