adios2 adios2
  • 13-10-2017
  • Mathematics
contestada

Jonas bought 3 books. Each book was the same price. He also used a coupon that takes $20 off the total cost. What expression can be used to represent the total purchase?

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musiclover10045
musiclover10045 musiclover10045
  • 13-10-2017

let x = the price of a book

 so you would have

 total = 3x-20

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