Part of the proceeds from a garage sale was $400 worth of $10 and $20 bills. If there were 7 more $10 bills than $20 bills, how many of each bills were there?
1 Answer
Feb 3, 2016
18 $10 bills and 11 $20 bills
Explanation:
Lets say there are
from the information given
1)
there are 7 more 10 dollar bills than 20 dollar bills therefore
2)
substituting equation 2 into equation 1
rearranging
putting the
Therefore there are 18 $10 bills and 11 $20 bills