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Math Help - Find Money Earned By Magazine

  1. #1
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    Find Money Earned By Magazine

    A magazine earned $68 million in 1998 from advertising revenue and
    subscriptions. If the advertising revenue was 6 times the subscription revenue, how much did the magazine earn from advertising?

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  2. #2
    MHF Contributor Unknown008's Avatar
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    Define some variables.

    Let a represent the revenue due to advertising.
    Let s represent the revenue due to subscription.

    You are told that together, they amount to 68 million.

    So,

    a + s = 68

    Then, you are told that advertising was 6 times bigger than subscription.

    a = 6s

    You get two equations with two unknowns. Solve for a, the earning from magazine.

    Post what you get!
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  3. #3
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    a + s = 68

    a = 6s

    ========


    6s + s = 68

    7s = 68

    s = 68/7

    Then a = 6s.

    a = 6(68/7)

    a = 408/7 times 1,000,000 [since we are dealing with millions].

    Is this right?

    I got a = $58,285,714.

    Is this right?
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  4. #4
    MHF Contributor Unknown008's Avatar
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    Right!

    In fact, there is one simple shortcut.

    The ratio of money spent on ad versus on subscription is 6:1

    Total is 7 parts.

    Money spent on advertising becomes \frac67 \times 68000000 = 58,285,714
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  5. #5
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    I like the shortcut in this question. Good work. Thanks! Can you check my reply to the question about percent spent by consumers in England? I came up with an equation and would like to know if it is correct.
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