The local coffee shop has 2 employees, one takes the orders and then takes payment, and the other worker makes the coffee drinks. while some folks ask for a simple cup of coffee that just needs to be poured, others ask for more elaborate coffee drinks, and others order multiple drinks. on average, though, it takes a total of 1 min and 15 seconds to process a customer, take the order, make the payment, and make the drink(s). during the busiest time of the day, 7: 30am to 9: 30am, about 39.5 customers come in per hour:
1. (2 points) since the two workers only service one customer at a time, they are in fact working e a single worker. what percentage of the time is this single team of workers busy?
2. (2 points) what is the average time a customer waits before they place an order? (in minutes)
3. (2 points) what is the average number of customers in the line?