Question

You are waiting in line to buy tickets to see your favorite band. You know you will be waiting at least 80 minutes. You are taking some magazines that usually take you 20 minutes apiece to read.

a) What inequality symbol would be used to demonstrate this problem?

b) Write and solve an inequality to determine how many magazines you will need to bring if you plan to read the entire time you wait

Answer 1

At least means >=.

Wait Time >= 80 minutes.
Magazine read time is 20 minutes each.
Let us say you take X magazines to read.

Wait Time = Read Time = 20X.
20X >= 80 minutes.

X >= 80/20 >= 4.