Problema Solution
alice is counting a cash register at the end of the night. he has $1015 in $5 bills and $10 bills. if she has 138 bills all together, howmany of each type does she have?
Answer provided by our tutors
let
x = the number of $5 bills
y = the number of $10 bills
he has $1015 in $5 bills and $10 bills:
5x + 10y = 1015
she has 138 bills all together:
x + y = 138
by solving the system of equations:
5x + 10y = 1015
x + y = 138
we find:
x = 73 bills
y = 65 bills
click here to see the step by step solution of the system of equations:
Alice has 73 bills of $5 and 65 bills of $10.