SOLUTION: A bank teller has 54 $5 and $20 bills in her drawer. The value of the bills is $780. How many $5 bills are there?

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Question 443544: A bank teller has 54 $5 and $20 bills in her drawer. The value of the bills is $780. How many $5 bills are there?
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
f + t = 54
5f + 20t = 780
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20f +20t = 1080
5f + 20t = 780
15f = 300
f = 20
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You have 20 fives.