College

A dog weighs 45.5 lb. What is the dog's mass in kilograms? (Note: [tex]1 \text{ lb} = 0.45 \text{ kg}[/tex])

A. 20.5 kg
B. 101 kg
C. 45.5 kg

Answer :

To convert the dog's mass from pounds to kilograms, we use the conversion factor given: [tex]\(1 \, \text{lb} = 0.45 \, \text{kg}\)[/tex].

Here's how to find the dog's mass in kilograms:

1. Start with the dog's mass in pounds: [tex]\(45.5 \, \text{lb}\)[/tex].
2. Multiply this mass by the conversion factor to convert it to kilograms.

[tex]\[
\text{mass in kilograms} = 45.5 \, \text{lb} \times 0.45 \, \text{kg/lb}
\][/tex]

3. Calculate the product:

[tex]\[
45.5 \times 0.45 = 20.475 \, \text{kg}
\][/tex]

So, the dog's mass is 20.475 kilograms.