Problema Solution
An office keeps a cashbox with $5 and $10 bills for small purchases. The cashbox has 25 bills in all. The total amount of money in the cashbox is $165. How many $5 bills are in the box?
Answer provided by our tutors
let
x = the number of $5 bills
y = the number of $10 bills
The cashbox has 25 bills in all:
x + y = 25
The total amount of money in the cashbox is $165:
5x + 10y = 165
by solving the system of equations:
x + y = 25
5x + 10y = 165
we find:
x = 17 bills of $5
y = 8 bills of $10
click here to see the step by step solution of the system of equations:
there are 17 $5 bills in the box.