Final answer:
To find out how many tickets were sold in 7 hours at Ken's concert, multiply the number of half-hour intervals in 7 hours by the tickets sold per half-hour, resulting in a total of 560 tickets sold.
Step-by-step explanation:
To calculate how many tickets were sold in 7 hours at Ken's school concert, where tickets were sold at the rate of 40 per half-hour, we need to perform a simple multiplication. First, we determine how many half-hour intervals there are in 7 hours. Since each hour has 2 half-hours, we multiply 7 hours by 2 to find the total number of half-hour intervals.
Calculation Steps:
- Determine the number of half-hour intervals in 7 hours: 7 hours × 2 = 14 half-hours.
- Calculate the total number of tickets sold: 14 half-hours × 40 tickets per half-hour = 560 tickets.
This multiplication gives us a final answer that 560 tickets were sold in 7 hours.