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21 August, 09:56

At a store, a hat has a regular price of x dollars. During a sale, the price of the hat is discounted by 20%. The expression 0.8x describes the discounted price, in dollars, of the hat. Which expression also describes the discounted price, in dollars, of the hat? A. 0.2x

B. x-20

C. x-0.2

D. x-0.2x

Can someone explain why is D correct?

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Answers (1)
  1. 21 August, 11:05
    0
    Step-by-step explanation:

    x-.20x

    Lets say the hat cost $100

    x=100

    multiplying 100 by 20% which is. 20 yields $20

    S0 $20 is the discount which we subtract from the original price

    100-20 and get the sale price of $80

    They use a shortcut so you don't have to do the subtracting of the discount

    They say if the price is being discounted subtract the discount from 1 and multiply that by the original amount

    So in this case the discount percent was 20% =.20

    Subtracted from 1

    1-.20=.80

    Since x is the original price we multiply x by the. 80 to get

    .80x
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