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andre [41]
3 years ago
12

A Web music store offers two versions of a popular song. The size of the standard version is 2.4 megabytes (MB). The size of the

high-qua ty version is 4.1 MB.

Mathematics
2 answers:
Margarita [4]3 years ago
5 0

Answer:

880 high-quality version

Step-by-step explanation:

I think the below is your full question:

<em>A Web music store offers two versions of a popular song. The size of the standard version is 2.1megabytes (MB). The size of the high-quality version is 4.5 MB. Yesterday, there were 1290 downloads of the song, for a total download size of 4821 MB. How many downloads of the high-quality version were there?</em>

Here is my answer:

Let x is the number of high-quality version

So the number of standard version= 1290 - x

We also know:  total download size of 4821 MB. which means:

4.5x + 2.1(1290-x) = 4821

<=> 4.5x+2709-2.1x=4821

<=> 2.4x=2112

<=> x=880

So there were 880 high-quality version

Arte-miy333 [17]3 years ago
5 0

Step-by-step explanation:

Below is an attachment containing the solution .

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Y = f(x) = 2^x
Virty [35]

Answer:

The value of f(x) when x=-1 is 0.5

Therefore f(-1)=0.5

Step-by-step explanation:

Given that y=f(x)=2^x

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3 years ago
the zeros of a parabola are -4 and 2, and (6, 10) is a point on the graph. which equation can be solved to determine the value o
natka813 [3]
Sure this question comes with a set of answer choices.

Anyhow, I can help you by determining one equation that can be solved to determine the value of a in the equation.

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Now, since the point (6,10) belongs to the parabola, you can replace those coordintates to get:

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Therefore, any of these equivalent equations can be solved to determine the value of a:

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Step-by-step explanation:

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