Anonymous
Anonymous asked in Science & MathematicsMathematics · 9 years ago

The price of a skateboard is $22.60 after using a 20% off coupon. What was the original price? (equation)?

7 Answers

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  • Anonymous
    9 years ago
    Favorite Answer

    P = original price........c = coupon percent off...............s = sale price

    s = P ( 1 - c/100)

    for your example.............22.60 = P (1 - 20/100) = 4/5 x P............P = $ 28.25

  • 9 years ago

    Multiply the sale price of 22.60 x 0.2 to find the amount that was taken off of the original price.

    22.60 x 0.2 = 4.52. So just add 4.52 to 22.60 to find the original price.

    22.60 + 4.52 = 27.12. Therefore the original price of the skateboard was $27.12

  • 9 years ago

    22.60 : X = 20 : 100

    It's easy to work it out as 20 is a part of 100, so all you need is one number, which is X.

  • 9 years ago

    22.60 = .8 (80%), so x + 1 (100%)

    .8x = 22.60

    x = 22.60/.8

    x = 28.25

    Proof: 28.25 x .2 = 5.65

    28.25 - 5.65 = 22.60

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  • 9 years ago

    27.12 (:

    This is because 22.60*0.2 is 4.52.

    Add that to the discounted price,and you get the original.

    Source(s): my brainn .
  • 9 years ago

    $ 22.60 * 100% + 22.60+ 20%= 22.60+4.52= $27.12

  • CwCc
    Lv 7
    9 years ago

    0.80*x = 22.60

    x = 22.60/0.80

    x = 28.25 (check this - I did it in my head)

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