You are planning an event for 100 people. You have a budget of $380 for dessert. Each slice of cake costs $3.00 and each slice of pie costs $5.00.

Write a system of equations to determine the number of slices of cake and pie you can buy.

O x - 3y = 380
x + 5y = 100

O x + y = 100
3x + 5y = 380

O x - y = 380
3x + 5y = 100

O 3x + 5y = 100
x + y = 380