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Marianna [84]
3 years ago
5

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

Mathematics
1 answer:
sashaice [31]3 years ago
8 0
Let s be standard and h be high-quality versions of the song.
To figure this out, let's make a system of equations: 
2.5s + 4.5h = 5740
h = 4s
First substitute the second equation into the first for h.
2.5s + 18s =5740
Then combine like terms.
20.5s = 5740
Lastly, divide each side by 20.5 to get the number of standard downloads: 
s = 280
Hope this helps!
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