math

john bought a new mac laptop for 520.99 with 15% sales tax. what was the original price and tax?

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  1. 1.15x = 520.99

    x = 520.99/1.15

    x = 453.03 >> original price

    520.99 - 453.03 = _______ tax

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    Ms. Sue
  2. Price * (1+0.15) = 520.99
    Solve for price.

    Tax is the difference between 520.99 and the original price.

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  3. thanks

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