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

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.

Answer 2

7.43892371 kg can Jennifer’s shelf support.

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 :

`(16.40)/(2.20462) = (x)/(1)`

⇒7.43892371 = x

or

x = 7.43892371 kg

Therefore, 7.43892371 kg can Jennifer’s shelf support.