Answer: 7 minutes
Step-by-step explanation:
There is no n variable in the question, found the original question and the equations is: t = 2n – 3.
So, to answer this question we simply have to substitute n=5 in the equation given:
t = 2(5) – 3.
Solving for t(time)
t = 10-3 = 7 min.
It will take the customer 7 minutes to buy 5 coffees.
Feel free to ask for more if needed or if you did not understand something.
