You purchased paint for the rooms in your house. you have 1.5 cans of paint left. you painted 4 rooms and each room required 2 cans of paint. you spilled 1/2 of a can of paint. how many cans of paint did you purchase?

Well, the rooms require 8 cans of paint, and since you spilled some, you have 1 can, so you would have to buy 7 cans of paint.

Because he painted 4 rooms and it takes 2 paint buckets to paint one room that is 8 paint buckets. Then you spilled 0.5 of a paint bucket plus the extra 1.5 of a paint bucket. Add 0.5 and 1.5 to get 2. Then add 2 and 8 to get 10. You bought 10 paint buckets!

10 paint buckets