Question
Some athletes have as little as 3.0% body fat. If such a person has a body mass of 80 kg, how many pounds of body fat does that person have Express your answer using two significant figures.
Answers
GPT 3.5
To find the pounds of body fat, we need to know the amount of body fat as a percentage of the body mass and then convert the body mass from kg to pounds.
If the person has 3.0% body fat, it means their body fat is 3.0% of their body mass.
Thus, the body fat is (3.0/100) * 80 kg = 2.4 kg.
To convert the body mass from kg to pounds, we know that 1 kg is approximately equal to 2.20462 pounds.
Therefore, the person's body mass in pounds is 80 kg * 2.20462 pounds/kg ≈ 176.3696 pounds.
Finally, to find the amount of body fat in pounds, we multiply the body fat in kg by the conversion factor:
2.4 kg * 2.20462 pounds/kg ≈ 5.2911 pounds.
Rounding to two significant figures, the person has approximately 5.3 pounds of body fat.
If the person has 3.0% body fat, it means their body fat is 3.0% of their body mass.
Thus, the body fat is (3.0/100) * 80 kg = 2.4 kg.
To convert the body mass from kg to pounds, we know that 1 kg is approximately equal to 2.20462 pounds.
Therefore, the person's body mass in pounds is 80 kg * 2.20462 pounds/kg ≈ 176.3696 pounds.
Finally, to find the amount of body fat in pounds, we multiply the body fat in kg by the conversion factor:
2.4 kg * 2.20462 pounds/kg ≈ 5.2911 pounds.
Rounding to two significant figures, the person has approximately 5.3 pounds of body fat.