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

protestommb 2022-06-25 Answered
A Web music store offers two versions of a popular song. The size of the standard version is 2.3 MB. The size of the high-quality version is 4.8 MB. Yesterday, there were 1020 downloads of the song, for a total download size of 3946 MB. How many downloads of the high-quality version were there?
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Answers (2)

popman14ee
Answered 2022-06-26 Author has 19 answers
Let the number of standard version be x
Let the number of high quality version be y

According to question:
x + y = 1020 ( 1 )
2.3 x + 4.8 y = 3946 ( 2 )

Multiply equation (1) by 2.3 and then subtract from equation (2)
2.3 x + 4.8 y 2.3 x 2.3 y = 3946 2346
2.5 y = 1600
y = 1600 2.5
y = 640
Hence, the number of high quality version is 640.

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minwaardekn
Answered 2022-06-27 Author has 6 answers
You saved me, thanks!

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