SOLUTION: This is a word question. Only using 5 & 10 dollar bills, if you have a total of $90 and 15 total bills how many of each bill do you have?

Question 276510: This is a word question. Only using 5 & 10 dollar bills, if you have a total of $90 and 15 total bills how many of each bill do you have?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of $5 bills
Let = number of $10 bills
given:
(1)
(2)
--------------
Multiply both sides of (1) by
and subtract from (2)
(2)
(1)

and, since
(1)

You have 12 $5 bills and 3 $10 bills
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