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Answered

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Callie's Craft Store offers knitting lessons. They charge $25 for the class and another $3.75 for each roll of yarn that a student wants to use. How many rolls of yarn did Sandra use if it cost her $40 to take the class? Let r represent the number of rolls of yarn that Sandra used. Which answer choices show the correct equation and solution for this situation?

Sagot :

silverguy176

Answer: x=4

Step-by-step explanation:

  1. 25+3.75×x=40
  2. 25+3.75x=40
  3. 3.75x=40-25
  4. 3.75x=15
  5. x=15/3.75
  6. x=4

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