### Home > INT3 > Chapter 10 > Lesson 10.1.1 > Problem 10-7

10-7.

The 300 people who are lined up outside an amusement park all enter by 8:15 a.m. By 8:30, 550 more people enter. After 8:30, every 15 minutes the number of people who enter increases steadily by 250. All of the people are planning to stay for the parade at noon. Homework Help ✎

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

Represent the problem as a sequence 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.