On Monday the office staff at your school paid 8.77 for 4 cups of coffee and 7 bagels. On Wednesday they paid 15.80 for 8 cups of coffee and 14 bagels. Can you determine the cost of a bagel Let the number of cups of coffee be c Let the number of bagels be b. Since cost = Price * Quantity, we're given two equations: 7b + 4c = 8.77 14b + 8c = 15.80 We have a system of equations. We can solve this 3 ways: Substitution Method Elimination Method Cramer's Rule No matter which method we use, we get the same answer The system is inconsistent. Therefore, we have no answer.