Final answer:
To find the amount of ribbon Kelly needs to wrap 12 turns around each of 8 posts, multiply the number of turns (12) by the circumference of one post (6 feet) to calculate the ribbon needed per post, and then multiply by the number of posts (8). Kelly will need a total of 576 feet of ribbon.
Step-by-step explanation:
The question asks for the total length of ribbon that Kelly would need to decorate 8 posts for the Homecoming Dance, given that each post is 12 feet high with a circumference of 6 feet and she plans to wrap 12 turns of ribbon around each post. To calculate this, we need to multiply the number of turns (12) by the circumference of a post (6 feet) to determine how much ribbon is required for one post. Then, we multiply that number by the total number of posts (8) to find out the total amount of ribbon needed.
First, calculate the ribbon needed for one post:
- 12 turns/post × 6 feet/turn = 72 feet/post
Next, multiply by the number of posts:
- 72 feet/post × 8 posts = 576 feet
Therefore, Kelly will need 576 feet of ribbon to decorate all the posts.