Mathematics Middle School

Alexa is a songwriter who collects royalties on her songs whenever they are played in a commercial or a movie. Alexa will earn $20 every time one of her songs is played in a commercial and she will earn $110 every time one of her songs is played in a movie. Alexa earned a total of $340 in royalties on 8 commercials and movies. Write a system of equations that could be used to determine the number of commercials and the number of movies on which Alexa's songs were played. Define the variables that you use to write the system.

Alexa Is A Songwriter Who Collects Royalties On Her Songs Whenever They Are Played In A Commercial Or

Answers

Answer 1

Answer:

x + y = 8

20x + 110y = 340

Step-by-step explanation:

Answer 2
X+y=8
So 20x+110y=340

Related Questions

Pls Help. Evaluate the following expression

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Step-by-step explanation:

[tex]9 + \frac{ {8}^{3} }{2} \\ 9 + \frac{8 \times 8 \times 8}{2} \\ 9 + \frac{512}{2} \\ 9 + 256 \\ 265[/tex]

It’s really simple you can just type the equation into the calculator but it’s basically 8^3 which is 8 x 8 x 8 which is 512 and divide that by 2 which is 256 and add 9 which is 265.

3. All boys at a certain High school play basketball, tennis or volleyball. If 31% play basketball, and 45% play tennis, find the percentage of boys who play volleyball.

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24% is the answer I believe

A store sells small pumpkins. The graph shows the cost c of p pumpkins. Write an equation that represents c.

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Answer:

c = 5p

Step-by-step explanation:

Since the line passes through the origin the equation is of the form

c = mp ( m is the slope )

Consider the points (0, 0 ) and (1, 5 ), then

m = [tex]\frac{rise}{run}[/tex] = [tex]\frac{5}{1}[/tex] = 5

The equation representing the quanties is

c = 5p

I am in need of help-
This is the problem:
71.8×0.06
This is my answer and the system (for school) is saying its wrong?
71.8×0.06=42.64842.648

Answers

i think it’s 4.308 when u multiply

Answer:

0.4308

Step-by-step explanation:

7.18 * 0.06 =0.4308

The following graph shows a proportional relationship.

What is the constant of proportionality between yyy and xxx in the graph?


Khan Academy

Answers

yeah sorry i can’t help you :(

If the graph is linear then constant of proportionality is represented by slope of line.

Since, graph shows a proportional relationship.

It means that y is directly proportional to x .

So, we get                 [tex]y=mx[/tex]

Where m is proportionality constant.

Since, graph is linear , Therefore, proportionality constant represent slope of line.

Learn more about linear graph:

https://brainly.com/question/15863636

                 

what were the countries in world war ||
giving brainly

Answers

Answer:

StGermany, Italy, and Japan) and the Allies (France, Great Britain, the United States, the Soviet Union, and, to a lesser extent, China). Read about the Tripartite Pact, the agreement that linked Germany, Italy, and Japan in a defensive alliance.

i’ll mark as brainliest if correct, thx!

Answers

E
Have a nice day, anymore questions?

Answer:

b,d,e

Step-by-step explanation:

The ratio of bass to catfish in the pond is 54 to 150. Which statement describes this relationship? A) There are 6 basses for every 25 catfish in the pond. Eliminate B) There are 9 basses for every 15 catfish in the pond. C) There is 9 bass for every 25 catfish in the pond. D) There are 25 basses for every 9 catfish in the pond.
will mark brainliest

Answers

Answer:

Step-by-step explanation:

Answer: C, 9 bass for every 25


Explanation: If you do 150 / 54 you get 2.77 so divided every one of those ratios and see which one equals the same. doing that will show you 25/9 is equal to 2.77 as well.

Hope I helped :)

Will give brainliest!
Both spinner A and B have equal-sized sections, as shown, at the right. Make a table to represent the sample space when both spinners are spun.

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Answer:

this question was asked in 2021 and I am pretty sure that you are in a different grade not so I am going to take the points.

Explain plz I’ll give brainliest tysm!

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which one of them as the anwser to it means which of them is equal to them Step-by-step explanation: divid

Two lines meet at a point that is also the endpoint of a ray.
Set up and solve an equation to find the value of c.

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We have to find the adjacent angle of 125, which is 55 degrees.Add 55 + 90 (= 145) to find the adjacent angle of angle W.Subtract 145 from 180, to get the measure of angle W, which is 35.

HOPE THIS HELPED YOU!

ooh this shouldn’t be too hard
so because of the vertical angles theorem the angles vertically opposite to each other are congruent
so we know that 90+w=125 because of that

so solve that and w=35

Explain a real world example of a combination where repetition is allowed. You need to EXPLAIN WHY, not just give an example.

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Answer:

Combinations refer to the combination of n things taken k at a time without repetition. To refer to combinations in which repetition is allowed, the terms k-selection, k-multiset, or k-combination with repetition are often used.

Step-by-step explanation:

in smaller cases it is possible to count the number of combinations. For example given three fruit, say an apple, orange and pear, there are three combinations of two that can be drawn from this set: an apple and a pear; an apple and an orange; or a pear and an orange.

Read the excerpt from a letter.

I would like to nominate my friend and colleague, Stephanie Mason, to be this year’s grand marshal of the spring parade. The grand marshal is supposed to be a citizen who strives for the betterment of the community, and that is what Stephanie does. She devotes her spare time gathering donated items to distribute to families in need. Her efforts have assisted over 700 families this year, and she intends to grow the program.

Which greeting would most likely open this letter?

Dear Friends in the Community,
People in Charge:
Attention, Nominating Committee:
Hey, Nominators,

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I would say;
Dear Friends in the community
I would put Dear friends in the community. Hope this helps! :3

Help me if you want to be worshiped UvU

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Answer:

48

Step-by-step explanation:

To find the mean, add up all the heights

(49+47+46+45+53) =240

Then divide by the number of students

240/5 =48

The mean is 48

Answer:

48

Step-by-step explanation:

So what you are trying to do here is to find the mean.

The means just means the average or norm.

To find the mean, you first add up all the numbers on the table to find a total.

So then you divide the total that you have by the numbers of values that you added together which may sound confusing but let me show you so it will make more sense.

So to find the number of values that you added together, you just count the student - A, B, C, D ,E or 49, 47 , 46, 45, 53. You just count the numbers that you have there in total which is again, 5.

Anyways since the total of the numbers when added up is 240 you just divide that by 5.

So when you do that your answer should be 48.

what's tha MAD for 35,36,36,36,41,41,42,44,49,50

Answers

[] Hello ! []

Answer:

4.2

Step-by-step explanation:

Formula:

$ MAD =\frac{1}{n} \sum_{i=1}^n |x_i-\bar{x}|$

Where n is the number of observed values, x-bar is the mean of the observed values, and xi is the individual values.

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I hope this helpedBrainliest is always appreciated! :D

⊕If this answer is wrong or displeases you, please tell me in the comments I would like to know.⊕

Thank you have a wonderful and blessed day!

-- Juri Davis

please help!!!

Part 1

You will need to measure five different people. Record your measurements on a piece of paper. Using a tape measure or ruler, measure the length (in inches) of a person’s left foot and then measure the length (in inches) of that same person’s forearm (between their wrist and elbow). Refer to the diagrams below. You will have two measurements for each person.

(An easy way to measure the length of a foot is to have your subject stand on a piece of paper. Then, trace their foot and measure the outline once they move off the paper.)

To measure the forearm, measure inside the arm, between the wrist and the elbow.



Part 2

Organize your data and find the rate of change.

Create a table of the measurements for your data. Label the forearm measurements as your input and the foot measurements as your output.

Select two sets of points and find the rate of change for your data.

Describe your results. If you had to express this relation as a verbal statement, how would you describe it?
Part 3

Compare rates of change.

The equation below can be used to find the length of a foot or forearm when you know one or the other.

(length of the foot) = 0.860 • (length of the forearm) + 3.302

If you let y = length of the foot and x = length of the forearm, this equation can be simplified to
y = 0.860x + 3.302.

Using this equation, how long would the foot of a person be if his forearm was 17 inches long?

What is the rate of change of the equation from Part A?

Compare the equation from Part A to your data. Are they the same? Which has a greater rate of change? Why do you think the values are different?

Is the relation in your data a function? Why or why not? Could the equation in Part A represent a function? Why or why not? Explain your answer.
For this option you will submit the details from all three parts. Submit your measurements, the table, and description that you created in Parts 1 and 2. Submit your answers to the questions from Part 3.

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Answer:

Do you still need help?

Step-by-step explanation:

help me out with some questions!!!!

Answers

Answer:

ok i would help but im new so i dont know how to put it

Step-by-step explanation:

Answer:

1.) 25

2.) $12  

3.) $20

4.) 9

5.) $15

6.) 9

Step-by-step explanation:

Find the interquartile range! PLEASE HELP!!!!!!

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C!!!!!!! 12-6=6!!! :)

1. Compare the data sets below by finding the range and IQR.
Set A: {8, 11, 17, 21, 13, 19, 9, 16, 12, 7, 14}

Set B: {17, 14, 19, 15, 10, 16, 17, 13, 18, 17, 16, 15}

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Answer:

1. Iqr: 8 and Range: 14

2.  Iqr: 2.5 and Range: 9

Set A:
Range-14 *21( highest number) minus 7(lowest number)*
IQR-13
7,8,9,11,12,*13*,14,16,17,19,21
Set B:
Range-9
IQR-16
10,13,14,15,15,*16*,17,17,17,18,19

Select the correct answer.
Which set of absolute values is compared correctly?

A. |-10| < |-5| < |17| < |5|

B. |-5| > |-10| > |-12| > |17|

C. |10| > |-15| > |-5| > |2|

D. |-10| < |12| < |-15| < |17|

Answers

D. |-10| < |12| < |-15| < |17|

D hope this help no problem

Please answer please answer

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I attached a photo of my work below; I just screenshotted the photo you provided. I apologize in advance for any mistakes, it’s 1 am and I’m in need of some sleep. However, I hope it helps otherwise. Have a good one!

Consider the figure. What is the area of the figure, in square centimeters? ​

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Step-by-step explanation:

l² + ½ * bh

5² + ½ (4)(5)

25+10=35cm²

help with my answer also you should listen to wit my h.0.e its a good song

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I’m pretty sure it’s C

Answer:

C

Step-by-step explanation:

Please help me. Question is in the image.

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A.15 cups of orange juice and 6 cups of mango juice
15 cups of orange juice and 6 cups of mango juice

_____?? help ??______
and NO FILES OR LINKS

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314 m is the correct answer.
32 meters!! c^2 = 400, 400 divided by 3.14*4 = 31.8

Please help ...thanks

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Question: Which two friends ate the same amount?

Answer: Jane and Kyle

How I got the answer: I converted all the fractions to decimals

Jane: 1/3 converted to decimal is 0.3 repeating

Mark: 2/8 converted to decimal is 0.25

Kyle: 2/6 converted to decimal is 0.3 repeating

help me pls I beg I beg I beg bbg

Answers

Answer:

72.25

Step-by-step explanation:

Triangles are 1/2(base x height), or (base x height) / 2.

17 x 8.5 = 144.5

144.5 / 2 = 72.25

74.25 square inches.

The formula to find the area of a triangle is A = 1/2(b)(h). (b being base and h being height)

A=1/2(17)(8.5)
A=1/2(144.5)
A= 72.25 :)

answer for brainliest
Part A
Theresa and her brother, Ruben, are getting phones that each have 32 gigabytes of storage. How many bits of storage come with each phone? Type your answer in both scientific and standard notation.

scientific notation - 2.56 * 1011 bits
standard notation - 256,000,000,000 bits

use the above to answer the following

Part A
Including the SD cards, how many combined bits of storage do Theresa and Ruben have on their phones? Type your answer in scientific notation.

Answers

256000 bits should be the correct answer

Answer:

I used the first  answer and the response given was the decimals were slightly off and the conversion was not accurate.  

Step-by-step explanation:

The graph below shows data that was collected from a person's commute to work over the course of one month. The equation of the trend line is y=-6/5x + 86

If the time of the commute is 45 minutes, what would you expect the speed of the commute to be?

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The speed of the commute would be approximately 34.166 repeating.

chose one H, I, or J

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Answer:

I

Step-by-step explanation:

1 month = 100

2 months = 100 * 2

etc...

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