• anonymous
How do I write the following word problem algebraically so that it can be solved in as a system of equations? Dan is looking to secure a hard-copy textbook for an upcoming geology course that lasts six months. Dan is trying to decide between renting the text book and buying it. He can rent the textbook for $15 per month or purchase it outright for $105. Which option is the most advantageous for the student based upon the student's needs?
  • Stacey Warren - Expert
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  • chestercat
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  • Hero
Systems of equations is not needed to solve this.
  • Hero
Basically what you want to do is figure out which option is the cheapest...renting or buying. He could purchase the book for $105, or he could pay $15 per month for the book. If the course lasts for six months, how much, in total, would he pay if he choose to rent the book?

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