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4 September, 18:11

MyPie Review Dictionary Calculator Assignments Calendar

Math for College Readiness 1

A Web music store offers two versions of a popular song. The size of the standard version is

2.1

megabytes (MB). The size of the high-quality version is

4.4

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

3825

MB. How many downloads of the standard version were there?

+3
Answers (1)
  1. 4 September, 18:48
    0
    250

    Explanation:

    Let's call the number of standard downloads S and the number of high-quality downloads H.

    For number of downloads:

    (1) H = 3S

    For downloaded size:

    (2) 4.4H + 2.1S = 3825 Substitute H in Equation (2)

    4.4 * 3S + 2.1S = 3285

    13.2S + 2.1S = 3825 Combine like terms

    15.3S = 3825

    S = 250
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