SOLUTION: 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 4.8 MB. Yesterday, there we
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Question 904732: 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 4.8 MB. Yesterday, there were 800 downloads of the song, for a total download size of 3288 MB. How many downloads of the high-quality version were there? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! S+H=800,
2.5*S+4.8*H=3288
S=800-H
2.5*(800-H)+4.8*H=3288
2000.0-2.5H+4.8*H=3288
2.3*H=1288.0
H=560.0
S=800-H
S=240 at 2.5 and H=560 at 4.8
check
240+560=800
2.5*S+4.8*H=3288
2.5*240+4.8*560=3288
600.0+2688.0=3288
3288.0=3288
ok
