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liubo4ka [24]
3 years ago
9

A Web music store offers two versions of a popular song. The size of the standard version is 2.3 megabytes (MB). The size of the

high-quality version is 4.2 MB. Yesterday, there were 990 downloads of the song, for a total download size of 3427 MB. How many downloads of the standard version were there?
Mathematics
1 answer:
Tju [1.3M]3 years ago
8 0

Step-by-step explanation:

If there was 3427 MB, the lower quality would've gotten 1,490 sales alone.

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I NEED HELP!! ASAP!! 3x + -7 = 42
Dmitrij [34]

Answer:

16 1/3

Step-by-step explanation:

add 7 to 42 to get 49, then divide by 3 to get 16 1/3. :)

7 0
3 years ago
Fifteen students are going hiking on their spring break. They plan to travel in three vehicles—one seating 7, one seating 5, and
andriy [413]

Answer:

The students can group themselves in 360360 ways

Step-by-step explanation:

For this exercise we need to use the following equation:

\frac{n!}{n1!*n2!*...*nk!}

This equation give us the number of assignation of n elements in k cell, where n1, n2, ..nk are the element that are in every cell

In this case we have 15 student that need to be assign in three vehicles with an specific capacity. This vehicles would be the equivalent to cells, so we can write the equation as:

  \frac{15!}{7!*5!*3!}

Because the first vehicle have 7 seating, the second vehicle have 5 seating and the third vehicle have 3 seating.

Solving the equation we get 360360 ways to organized 15 students in three vehicles with capacity of 7, 5  and 3 seating.

5 0
3 years ago
What is the square root of 100 times two divided by two
gogolik [260]

Answer:

10 is your answer

Step-by-step explanation:

√((100 * 2)/2)

Simplify. First, follow the Parenthesis. Combine 100 with 2

100 * 2 = 200

Next, divide by 2

200/2 = 100

Root 100

√100 = √10 * √10 = 10

10 is your answer

~

An easier way to solving this is to first cancel out the 2's ( multiplying 2 and dividing 2 would do nothing), and just square rooting 100, giving you the answer 10.

~

8 0
3 years ago
Read 2 more answers
F(x) = x2 − 8x + 15 g(x) = x − 3 h(x) = f(x) ÷g(x)
olasank [31]
Hello : 
x²-8x+15 = (x-3)(x-5)
<span>h(x) = f(x) ÷g(x) = (x-3)(x-5)/(x-3)= x-5</span>
5 0
3 years ago
Read 2 more answers
Is the Y value of the vertex of 4x squared plus 8X minus 8. help meee​
SIZIF [17.4K]

Answer:

y = -12

Step-by-step explanation:

You first calculate the x coordinate using the equation x = \frac{-b}{2a}, which in this case is \frac{-8}{8} = -1.

Then plug that x value into the equation to get the y coordinate:

4(-1)²+8(-1)-8 = -12

8 0
3 years ago
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