Ashley and Liam both have playlists on their music apps. The number of playlists on Ashley’s app can be represented by X. The number of playlists on Liam’s app is 4 times the number of playlists on Ashley’s app. The total number of playlists on both their apps is at least 45. What is the solution set for x, representing the number of playlists on Ashley’s app?
Let's say the number of playlists on Ashley's app is x
The number of playlists on Liam's app is 4x (4 times the number on Ashley's app)
The total number of playlists on both apps is x + 4x = 5x
The problem states that the total number of playlists is at least 45, so we have:
5x >= 45
Dividing both sides by 5, we get:
x >= 9
The solution set for x, representing the number of playlists on Ashley's app, is x >= 9.