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
ValentinkaMS [17]
3 years ago
10

A Web music store offers two versions of a popular song. The size of the standard version is 2.1 megabytes (MB). The size of the

high-quality version is 4.1 MB. Yesterday, there were 1010 downloads of the song, for a total download size of 2761 MB. How many downloads of the high-quality version were there?
Mathematics
1 answer:
liq [111]3 years ago
5 0
If the number of downloads of the standard version is x, and the high quality is x, 2.1*x+4.1*y=2761 (not 1010 due to that this is multiplied by 2.1 and 4.1, therefore representing the total amount of megabytes) In addition, there are 1010 total downloads, and it's either 2.1 MB or 4.1 MB, so x+y=1010.

We have 
2.1x+4.1y=2761
x+y=1010

Multiplying the second equation by -2.1 and adding it to the first equation, we get 2y=2761-1010*2.1=640 and by dividing both sides by 2 we get y=320 downloads of the high quality version


You might be interested in
Cindi is planting a rectangular flower bed with 40 orange flower and 28 yellow flowers. She wants to plant them so that each row
Vilka [71]

Answer: 17 rows, 7 of yellow flowers and 10 of orange flowers.

Step-by-step explanation:

We have 40 orange flowers

we have 28 yellow flowers.

The total number of flowers is 40 + 28= 68

Now, we want to find the maximal comon factor between 28 and 40 (that will be the number of flowers in each row)

for this, we took the smallest number and find its factors, and then we see if those factors are also of the greater number.

28/1 = 28 ----> 40/28 is not integer, so 28 is not a factor of 40.

28/2 = 14 ----> 40/14 is not integer, so 14 is not a factor of 40.

28/3 is not integer.

28/4 = 7 ----> 40/7 is not integer, so 7 is not a factor of 40.

28/5 is not integer.

28/6 is not integer.

28/7 = 4, 40/4 = 10, so 4 is a factor of both 28 and 40.

Then the maximum number of flowers that we can put in each row is 4.

this means that we have:

28/4 = 7 rows of yellow flowers (with 4 flowers each)

40/4 = 10 rows of orange flowers (with 4 flowers each)

a total of 17 rows.

3 0
3 years ago
You are going to use an inclined plane to lift a heavy object to the top of a shelving unit with a height of 6 feet. The base of
Mama L [17]
24000 is the answer
3 0
3 years ago
What is the answer to this 19 3/4 / 2
Svet_ta [14]

Answer:

79/8

Step-by-step explanation:

19 3/4 = 79/4

79/4 / 2 is same as 79/4 * 1/2

79/8

Answer:  79/8

6 0
3 years ago
Read 2 more answers
A side of the triangle below has been extended to form an exterior angle of 129°. Find the value of x.
Anvisha [2.4K]

Answer:

The value of x is 30°

Step-by-step explanation:

X° + 90° = 129° (Exterior angle property)

x° = 129° - 99° = 30°

<u>x°</u><u> </u><u>=</u><u> </u><u>3</u><u>0</u><u>°</u>

Hope it helps:)

6 0
3 years ago
In a store, 1 can of soup costs $1.80.
Anvisha [2.4K]
It would be $13.52 for 11 cans of soup
5 0
3 years ago
Other questions:
  • Carl earns $5.25 per hour walking his neighbors dogs. He walks them 2/6 of an hour in the morning and 1/2 of an hour in the afte
    6·1 answer
  • Help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    5·1 answer
  • What is the ratio 15 to 35 written as a fraction in lowest terms?
    12·2 answers
  • Because of a mistake in​ packaging, a case of 16 bottles of wine contained 9 of brand A and 7 of brand​ B, each without labels.
    6·1 answer
  • Given f(x)=2x2−5x−3 and g(x)=2x2+x .<br> What is (fg)(x) ?
    15·1 answer
  • What is 23.95 rounded to one decimal place?
    10·1 answer
  • Two sides of a parallelogram are 520 feet and 740 feet. The measure of the angle between these sides is 141°. Find the area of t
    12·1 answer
  • Please help this is due today!
    11·1 answer
  • Real talk shhhh
    15·1 answer
  • Whats the answer to 2-3x=3x-4
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!