anonymous
  • anonymous
kerry asked a bank teller to cash a $390 check using $20 bills and $50 bills. if the teller gave her a total of 15 bills, how many of eech type of bill did she recieve?
Mathematics
katieb
  • katieb
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Directrix
  • Directrix
Let x = the number of $20 bills Let y = the number of $50 bills Then, x + y = 15 Also, 20x + 50y = 390 Solving these two equations in two unknowns simultaneously, x = 12 (number of $20 bills) and y = 3 (number of $50 bills)

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