1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marianna [84]
3 years ago
5

A Web music store offers two versions of a popular song. The size of the standard version is

Mathematics
1 answer:
sashaice [31]3 years ago
8 0
Let s be standard and h be high-quality versions of the song.
To figure this out, let's make a system of equations: 
2.5s + 4.5h = 5740
h = 4s
First substitute the second equation into the first for h.
2.5s + 18s =5740
Then combine like terms.
20.5s = 5740
Lastly, divide each side by 20.5 to get the number of standard downloads: 
s = 280
Hope this helps!
You might be interested in
Spencer took $21 with him to the mall. At the music store he spent 2/3 of his money on a DVD. Then spent 1/4 on a drink. How muc
frutty [35]
After the music store he had $14 left, because 21:3=7 and 7x2 equals 14.

After the drink, he has $3.5 left, because 14:4=3.5 and 3.5x1=3.5.

Conclusion: that is one expensive drink. (Answer is 3 dollars and 50 cents. Hope this helped:)
6 0
2 years ago
Read 2 more answers
Subtract the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending pow
Vadim26 [7]
Hi! :)

12 a^2 + 60 a - 8
- (16 a^2 - 32 a + 9)

= -4 a^2 + 92 a - 17
3 0
3 years ago
Click photo for question
Lana71 [14]

In a triangle when an angle between two equal length sides is 60 that means that the triangle is equilateral.
6 0
3 years ago
Ted likes to run long distances. He can run 20 km 95 minutes. He wants to know how many kilometers (k) he will go if he runs at
maxonik [38]

He will run 60km in 285 minutes.



8 0
3 years ago
Read 2 more answers
Do Audience Ratings Differ Based on the Genre of the Movie? The dataset HollywoodMovies includes a quantitative variable on the
Juli2301 [7.4K]

Answer:

Step-by-step explanation:

Hello!

(a) Which genre has the highest mean audience score? The lowest mean audience score?

1) Action \frac{}{X}_1= 58.63

2) Comedy \frac{}{X}_2= 59.11

3) Drama \frac{}{X} _3 = 72.10

4) Horror \frac{}{X}_4= 48.65

The lowest mean score is  \frac{}{X}_4= 48.65

The highest mean score is  \frac{}{X} _3 = 72.10

(b) Which genre has the highest median score? The lowest median score?

1) Action Me₁= 51.00

2) Comedy Me₂= 58.00

3) Drama Me₃= 72.00

4) Horror Me₄= 52.00

The Lowest median is Me₁= 51.00

The Highest median is Me₃= 72.00

(c) In which genre is the lowest score, and what is that score? In which genre is the highest score, and what is that score?

Lowest or minimum scores:

1) Action 32.00

2) Comedy 31.00

3) Drama 46.00

4) Horror 25.00

The genre with the lowest score is "Comedy"

Highest or maximum scores:

1) Action 93.00

2) Comedy 93.00

3) Drama 91.00

4) Horror 78.00

There are two genres with the highest score "Action" and "Comedy"

(d) Which genre has the largest number of movies in that category?

The number of movies for each category corresponds to the sample sizes:

1) Action n₁= 32

2) Comedy n₂= 27

3) Drama n₃= 21

4) Horror n₄= 17

The largest number of movies sampled was for the genre "Action"

(e) Calculate the difference in mean score between comedies and horror movies, and give notation with your answer, using i, for the mean comedy score and, for the mean horror score.

Comedy \frac{}{X}_C= 59.11

Horror \frac{}{X}_H= 48.65

\frac{}{X}_C -  \frac{}{X}_H= 59.11 - 48.65= 10.46

I hope this helps!

5 0
3 years ago
Other questions:
  • The wind blew away 26 of y out r muffins. That was 2/3 of all of them! With how many did you start?
    15·1 answer
  • Which expression represents the phrase, "one third the sum of 12 and a number"?
    10·2 answers
  • What is 688.26 rounded to the nearest tenth?
    8·1 answer
  • What is answer to 3x = 78??
    10·1 answer
  • Rolando surveyed 35 classmates about their favorite sports. He put his results in the table.
    5·1 answer
  • Stefanie bought a package of pencils for $2.99 and some erasers that cost $0.33 each.
    7·2 answers
  • Give your answer as a mixed number
    10·1 answer
  • Write the equation of a line that is perpendicular to y = -1 and that passes through the point (8,-4)
    9·1 answer
  • Someone please helppp
    12·1 answer
  • Can y’all please help me asappp.!!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!