SOLUTION: A Web music store offers two versions of a popular song. The size of the standard version is 2.9 megabytes (MB). The size of the high-quality version is 4.3 MB. Yesterday, t

Algebra ->  Linear-equations -> SOLUTION: A Web music store offers two versions of a popular song. The size of the standard version is 2.9 megabytes (MB). The size of the high-quality version is 4.3 MB. Yesterday, t      Log On


   

Question 1103682: A Web music store offers two versions of a popular song. The size of the standard version is
2.9
megabytes (MB). The size of the high-quality version is
4.3
MB. Yesterday, the high-quality version was downloaded four times as often as the standard version. The total size downloaded for the two versions was
4824
MB. How many downloads of the standard version were there?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
X-number of 2.9 Mb downloads
Y-number of 4.3 Mb downloads
.
.
Y=4X
2.9X%2B4.3Y=4824
Substituting,
2.9X%2B4%284.3Y%29=4824
2.9X%2B17.2Y=4824%7D%7D%0D%0A%7B%7B%7B20.1Y=4824
Solve for Y, then use either equation to solve for X.