Hayes does 3 loads of laundry a week using a detergent pod for each load. His detergent pods come 39 to a pack. How many packs of detergent pods will he need to do a full year of laundry? Give me reasons, before answering the question
He uses 3 detergent pods a week and there are 52 weeks in a year, so he uses 3 * 52 = 156. His detergent has 39 pods per pack and he needs 156 pods, so he will need 156 / 39 = 4 packs of detergent pods. So the final answer is 4.