Question

tissues of living organisms consist primarily of organic compounds; that is, they contain carbon molecules known as proteins, carbohydrates, and fats. a healthy human body is approximately 18% carbon by weight. determine how many pounds of carbon a body weighing 200 lbs contains. how many kilograms would that be? use 0.454 kg equals 1 lb in your conversion.
a. 440 lbs of carbon; 16 kg of carbon
b. 36 lbs of carbon; 79 kg of carbon
c. 36 lbs of carbon; 16 kg of carbon
d. 440 lbs of carbon; 79 kg of carbon
please select the best answer from the choices provided

Explanation:

Step1: Calculate pounds of carbon

The body weighs 200 lbs and is 18% carbon by weight. So we find 18% of 200 lbs.
$200\times0.18 = 36$ lbs

Step2: Convert pounds to kilograms

We know that 0.454 kg equals 1 lb. So to convert 36 lbs to kg, we multiply 36 by 0.454.
$36\times0.454= 16.344\approx16$ kg

Answer:

C. 36 lbs of carbon; 16 kg of carbon