A Web music store offers two versions of a popular song. The size of the standard version is 2.3 megabytes (MB). The size of the
high-quality version is 4.2 MB. Yesterday, there were 990 downloads of the song, for a total download size of 3427 MB. How many downloads of the standard version were there?
Since this is a right triangle with one angle and hypotenuse given and opposite side unknown, we can use the definition of sine to find the unknown side.
