SOLUTION: 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 4.4 MB. Yesterday, t

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: 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 4.4 MB. Yesterday, t      Log On

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Question 1081770: 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
4.4
MB. Yesterday, there were
890
downloads of the song, for a total download size of
2536
MB. How many downloads of the standard version were there?

Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
Let m be the amount of standard-version downloads, and n be the number of high-quality downloads. Then:
m+n=890
2.1m+4.4n=2536
So:
2.1m+4.4n=2536
2.1m+2.1n=1869
2.3n=667
n=290
m=600
There were 600 standard downloads and 290 high-quality downloads of the song. ☺☺☺☺