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Amanda has 227 worth of bills in her purse. she has 6 more $5 dollar bills than $10 bills. The number of $1 bills is three fewer than 25 times the number of $10 dollar bills. How many of each does amanda have?

Respuesta :

valeryloky24
I think it’s 20 I hope that works
helpimfailing101

Answer:

Step-by-step explanation:

x = $5 dollar bills

 y = $10 dollar bills

 x + y = 15

 5x + 10y = 120

5x + 10(15-x) = 120

 5x + 150 - 10x = 120

 -5x = -30

 x = 6, so y = 9

 

There are six $5 bills and nine $10 bills.

Multiples of 5s will only end with 5 or 0.  5 times any odd number will always end with 5 and 5 times any even number will always end with 0

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