marnold marnold
  • 01-10-2014
  • Mathematics
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The cost of ordering multiple items is sometimes, always or never proportional

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SlowZasob
SlowZasob SlowZasob
  • 01-10-2014
Unless there is no promotion like "buy 2 get 1 free" or "buy 2 get 1 for 50%" etc. then the cost of ordering multiple items is always proportional. Let's say something costs $5. Two items will cost $10, three $15, four $20 etc. These numbers are all proportional. Hopefully that's what you meant :)
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