Problema Solution
Carol has three times as many 10 dollar bills as 5 dollar bills. She has a total of $350. How many dollar bills does carol have?
Answer provided by our tutors
let
x = the number of $10 bills
y = the number of $5 bills
Carol has three times as many 10 dollar bills as 5 dollar bills
x = 3y
she has a total of $350
10x + 5y = 350
by solving the system of equations
x = 3y
10x + 5y = 350
we find
x = 30 bills
y = 10 bills
click here to see the step by step solution of the system of equations
Carol has 30 bills of 10$ and 10 bills of $5.