A pair of sneakers are on sale for 20% off the original price. Tom purchased a pair of sneakers at this discounted price of $80. What is the original price of the sneakers?

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  1. The answer is 100.
    You start by making a formula:
    .80(x) = 80,
    As we know the discount is 20% off, which makes the price actually 80% of what it originally was. Convert percent to a decimal gets you that .80
    Reverse the process — 80/0.80 = 100

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