Answer :
The unit rate of weight loss for the Weight Watchers group is 12.64 pounds per member when rounded to the nearest hundredth.
To determine the unit rate of weight loss per member in the Weight Watchers group, divide the total weight lost by the number of members. With 139 pounds lost by 11 members, the calculation is:
139 lb \/ 11 members = 12.6363636364 lb/member
When rounded to the nearest hundredth, the unit rate is 12.64 lb/member.
To find the unit rate, we divide the total weight lost by the number of members in the Weight Watchers group.
Given:
Total weight lost = 139 lb
Number of members = 11
Unit rate = Total weight lost / Number of members
Unit rate = 139 lb / 11 members
Unit rate ≈ 12.636363... lb per member
Rounded to the nearest hundredth, the unit rate is approximately 12.64 lb per member.