Question

(c) Use both lines to predict the percent body fat from preferred amount of salt for a child with preferred amount of salt 1 when weight is measured in milligrams, which is the same as 10 when weight is in tenths of milligrams. Round your answers to one decimal place. In milligrams, what is the percent body fat for a child with a preferred amount of salt 1?

Answer 1

The percent body fat for a child based on salt preference cannot be calculated without a specific mathematical model. Example calculations in the reference material show how to calculate percent body fat in general using conversion factors, but specific models relating salt preference to body fat are not provided.

Step-by-step explanation:

To calculate the percent body fat for a child with a preferred amount of salt of 1 milligram, we need a precise mathematical model that relates salt preference to body fat percentage. Unfortunately, such a model is not provided in the question or in the provided reference information.

However, based on example calculations given in the reference information, we can understand how to perform percent by mass calculations in general.For instance, a healthy person with a body fat percentage of 16% might be calculated as follows: if a person weighs 180 pounds, then their body fat in pounds is 16% of their total weight. To convert this to kilograms, a conversion factor between pounds and kilograms would be used.

The conversion is 1kg = 2.20462 lbs. Therefore, to calculate body fat in kilograms, we multiply the body fat in pounds by this conversion factor and round accordingly, making sure not to round intermediate steps to avoid rounding errors.