Question

A group of fitness club members lose a combined total of 28 kilograms in 1 week . There are approximately 2.2 pounds in 1 kilogram. Assuming the weight loss happened at a constant rate , about how many pounds did the group lose each day ?

Answer 1

The group lost 8.8 pounds each day

Solution:

Given that, A group of fitness club members lose a combined total of 28 kilograms in 1 week

There are approximately 2.2 pounds in 1 kilogram

From given,

1 kilogram = 2.2 pounds

Convert 28 kilograms to pounds

$28\ kilogram = 2.2 \times 28\ pound\\\\28\ kilogram = 61.6\ pound$

So, the club members lose 61.6 pound in 1 week

Assuming the weight loss happened at a constant rate

We know that,

1 week = 7 days

So, the club members lose 61.6 pounds in 7 days

Let "x" be the number of pounds lost in 1 day

Then, we get,

7 days = 61.6 pounds

1 day = "x" pounds

This forms a proportion and we can solve the sum by cross multiplying

$7 \times x = 61.6 \times x\\\\x = \frac{61.6}{7}\\\\x = 8.8$

Thus the group lost 8.8 pounds each day

Answer 2

Answer:

8.8

Step-by-step explanation:

The group lost 28/7 = 4 kilograms of weight each day.

1 kilogram = 2.2 pounds

4 kilograms = 2.2 x 4 = 8.8 pounds