A fast food restaurant has one drive through window. An average of 40 customer per-hour arrive at the window. It takes an averag
e of 1 minute to serve a customer. Assume that inter-arrival and service times are exponential.
a On the average, how many customers are waiting in line?
b On the average, how long does a customer spend at the restaurant (from time of arrival to time service is completed)?
c What fraction of the time are more than 3 cars waiting for service (this includes the car (if any) at the window)?
a On the average, how many customers are waiting in line?
b On the average, how long does a customer spend at the restaurant (from time of arrival to time service is completed)?
c What fraction of the time are more than 3 cars waiting for service (this includes the car (if any) at the window)?
1 answer:
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Answer: d < 13/2
Step-by-step explanation:
Rearrange:
Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :
8*d-5-(6*d+8)<0
Step by step solution :
Step 1 :
1.1 Divide both sides by 2
d-(13/2) < 0
Solve Basic Inequality :
1.2 Add 13/2 to both sides
d < 13/2
Inequality Plot :
1.3 Inequality plot for
2.000 d - 13.000 < 0
