### Home > CCA2 > Chapter 10 > Lesson 10.1.1 > Problem 10-8

10-8.

The 300 people who were lined up outside the amusement park had all entered by 8:15 a.m. By 8:30, 550 more had entered. The number who entered each 15 minutes increased steadily by 250 after that. All of the people were planning to stay for the parade at noon. Homework Help ✎

How many people entered between 11:45 and noon, just in time for the parade?

Represent the problem as a series and write a formula for the

*n*^{th}term.

4050

Write the summation representing the total number of people who entered the amusement park to see the parade between 8:15 and 12:00.

Write the formula for the sequence representing the number of people who entered the park during the n^{th} quarter-hour.