High School

Determine the unit rate and round to the nearest hundredth when necessary.

One Weight Watchers group lost 139 lb for its 11 members.

What is the unit rate in pounds per member?

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.