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A store has a coupon for $10 off and a discount of 20%. Write a function for the coupon. Use x for the original price and C for the price after the coupon is applied.

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Step-by-step explanation:

We know some facts:

  • x for the original price.
  • The store has a coupon for $10 off and a discount of 20%
  • C for the price after the coupon is applied.

So from the statement 2, you can realize there are two types of discounts:

  1. The discount offered by the coupon
  2. The discount offered by 20%

Since we need to write a function just for the coupon, then we don't include the discount offered as percentage, then we subtract the coupon from the original price:


\boxed{C=x-10}

User Subhash Rawat
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