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  1. #1
    Member BrookeM's Avatar
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    Math Problem: Figuring out Sales Tax?

    10 points awarded, thank you so much!

    Question: The tax on a $70 item is $3.50

    Find the Tax on a $100 item.

  2. #2
    Senior Member Jeff's Avatar
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    set up two ratios
    70 / 3.50 = 100 / x
    x = 100(3.5) / 70
    = $5.00


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