Question

Jennifer has built a shelf which can safely support 16.40 pounds. If there are 2.20462 pounds in a kilogram, how many kilograms can Jennifer’s shelf support?

Answer 1

Answer:

7.43892371 kg can Jennifer’s shelf support.

Step-by-step explanation:

Proportion states that if two ratios or fractions are equal.

As per the statement:

Jennifer has built a shelf which can safely support 16.40 pounds.

If there are 2.20462 pounds in a kilogram.

We have to find how many kilograms can Jennifer’s shelf support.

Let x kilogram can Jennifer’s shelf support.

By definition of proportion :

$\frac{16.40}{2.20462} = \frac{x}{1}$

⇒7.43892371 = x

or

x = 7.43892371 kg

Therefore, 7.43892371 kg can Jennifer’s shelf support.

Answer 2

Multiply the original 16.40 lb by the conversion factor    (1 kg) / (2.20462 lb):

16.40
------------- kg = 7.44 kg.  Round off to 2 decimal places because 16.40 lb is 
2.20462                           accurate only to 2 dec. places.