SOLUTION: A bank teller has 54 $4 and $20 bills in her cash drawer. The value of the bills of $780. How many $5 bills are there?
I tried X+Y= 54
X-Y= 20
2X=34
X-17 $5 BILLS
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-> SOLUTION: A bank teller has 54 $4 and $20 bills in her cash drawer. The value of the bills of $780. How many $5 bills are there?
I tried X+Y= 54
X-Y= 20
2X=34
X-17 $5 BILLS
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Question 426992: A bank teller has 54 $4 and $20 bills in her cash drawer. The value of the bills of $780. How many $5 bills are there?
I tried X+Y= 54
X-Y= 20
2X=34
X-17 $5 BILLS
THIS DOES NOT SEEM RIGHT Found 2 solutions by stanbon, mananth:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A bank teller has 54 $5 and $20 bills in her cash drawer. The value of the bills of $780. How many $5 bills are there?
Quantity Eq: f + t = 54 bills
Value Eq: 5f+20t = 780 dollars
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Divide thru the Value Eq by 5
f+t = 54
f+4t=156
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Subtract and solve for "t":
3t =102
t = 34 (# of $20 bills)
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Solve for "f":
f+t = 54
f+34 = 54
f = 20 (# of $5 bills)
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Cheers,
Stan H.
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