amabrown87 amabrown87
  • 01-06-2018
  • Mathematics
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A new phone sells for $250 and a used one sells for $75. How many of each are sold if the profit for the day is $625

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MrGumby
MrGumby MrGumby
  • 01-06-2018
5 used phones and 1 new one. 

These are the only combinations that would get you to exactly this price. If we buy two new phones it comes to $500 and leaves us with $125 which is not divisible by $75. If we buy 3 it comes to $750 which is over the desired amount. 
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