SOLUTION: I think I am figuring this problem wrong because the choices I have are none of what I get. So can you help me with this problem please. A bank teller has some five dollar bills

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Question 419073: I think I am figuring this problem wrong because the choices I have are none of what I get. So can you help me with this problem please.
A bank teller has some five dollar bills and some twenty-dollar bills. The teller has 5 more of the twenties. The total value of the money is $775. Find the number of five-dollar bills that the teller has.
Thanks for your help :o)
Found 3 solutions by scott8148, dnanos, mananth:
Answer by scott8148(6628)   (Show Source):
You can put this solution on YOUR website!
x(5) + (x+5)(20) = 775

5x + 20x + 100 = 775

Answer by dnanos(83)   (Show Source):
You can put this solution on YOUR website!
x the number of five dollar bills
x+5 the number of twenties.
total value:
5x+20(x+5)=775
5x+20x+100=775
25x+100=775
25x=775-100
25x=675
25x/25=675/25
x=27
and the number satisfies the problem:

Answer by mananth(16946)   (Show Source):
You can put this solution on YOUR website!
$5.00 --------------x
$20.00 --------------( x+5)

Value $ 775
,,,,
5x+20(x+5)=775
5x+20x+100=775
25x+100 =775
25x=775 -100
25x=675
/25
x=27 $5.00
32 $20.00
135+640=775