Problema Solution

A cash box of $1 and $5 bills isworth $45. The number of $1 billsis three more than the number of$5 bills. How many of each billdoes it contain

Answer provided by our tutors

Let

x = the number of $1 bills

y = the number of $5 bills

x + 5y = 45

x = y + 3

........

click here to see the system of equations solved for x and y

........

x = 10 $1 bills

y = 7 $5 bills

The cash box contains ten $1 bills and seven $5 bills.