Answer:
30 one-dollar bills and 12 five-dollar bills.
Step-by-step explanation:
Let x represent number of one-dollar bills and y represent number of five-dollar bills.
We have been given that a tip jar contains x one-dollar bills and y five- dollar bills. There are 42 bills in the jar. We can represent this information in an equation as:
We are also told that the total value of all bills is $90.00. We can represent this information in an equation as:
Upon substituting equation (1) in equation (2), we will get:
Therefore, there are 12 five-dollar bills in the tip jar.
Upon substituting in equation (1), we will get:
Therefore, there are 30 one-dollar bills in the tip jar.
