Rob collects data about how many customers enter and leave a store every hour. He records a positive number for customers enteri
ng the store and a negative number for customers leaving the store each hour. a. During which hour did more customers leave the most?
b. There were 75 customers in the store at 1:00. The store must be emptied of customers when it closes at 5:00. How many customers must leave the store between 4:00 and 5;00?
Entering Leaving
1:00 to 2:00 30 -12
2:00 to 3:00 14 -8
3:00 to 4:00 18 -30
To answer the question, we utilize the given data and solve for the number of customers left in the store after every 1 hour interval.
Initially, there were 75 customers.
1:00 to 2:00 : 75 + 30 - 12 = 93 2:00 to 3:00 : 93 + 14 - 8 = 99 3:00 to 4:00 : 99 + 18 - 30 = 87 4:00 to 5:00 : If the store does not accept any more customers except those who are already inside then, all 87 must leave between 4:00 to 5:00 in order to empty out the store by 5:00
