Answer:
$5: 7
$1: 10
Step-by-step explanation:
We can write the equation as such.
1. 5x + (x + 3) = 45
2. 6x = 42
3. x = 7
The number of $5 bills is 7, now we can use the x + 3 to solve the amount of $1 bills.
1. x + 3 = ?
2. 7 + 3 = 10
There are 10 $1 bills.