SOLUTION: Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. How many of each bill does Anna have?
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Question 104407: Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. How many of each bill does Anna have?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
12 bills total
$5 and $10 bills possible
$100 total
Let F be the number of $5 bills and T be the number of $10 bills.
1.Bill total equation.
2.Value equation.
Use equation 1 to solve for T and substitute into equation 2.
1.
2.
Value equation.
Distributive property.
Simplify.
Additive inverse of 120.
Multiplicative inverse of (-5).
Number of $5 bills.
Number of $10 bills.
Number of $5 bills is 4.
Number of $10 bills is 8.
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