SOLUTION: A Web music store offers two versions of a popular song. The size of the standard version is 2.6 megabytes (MB). The size of the high-quality version is 4.2 MB. Yesterday, the high

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Question 1167881: A Web music store offers two versions of a popular song. The size of the standard version is 2.6 megabytes (MB). The size of the high-quality version is 4.2 MB. Yesterday, the high-quality version was downloaded three times as often as the standard version. The total size downloaded for the two versions was 4256 MB. How many downloads of the standard version were there?

Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
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let x  = number of downloads of the standard version

Then the  number of downloads of the high quality version is 3x.



The total memory equation


    4.2*(3x) + 2.6*x = 4256  MGb.


From the equation


    x = 4256%2F%283%2A4.2+%2B+2.6%29 = 280.


The number of the standard version downloads was 280;

           of the high quality version downloads was  3*280 = 840.    ANSWER

Solved.