Help with this word problem

Question

A Web music store offers two versions of a popular song. The size of the standard version is
2.5
megabytes (MB). The size of the high-quality version is
4.4
MB. Yesterday, there were
690
downloads of the song, for a total download size of
2599
MB. How many downloads of the high-quality version were there?

Answer 1

If we denote as x the number of downloads of  highthe standard version songs (2.5MB) and y the hight-quality version, then you have to solve the system of equations:

x + y = 690

2.5 x + 4.4 y =2599

Can you solve it? (The answer is x=230,  y=460.)

Answer to your question is y= .