A body mass index from 27 through 29 carries a slight risk of weight-related health problems, while
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A body mass index from 27 through 29 carries a slight risk of weight-related health problems, while a BMI of 30 or more indicates a great increase in risk. Use your own height and weight and the information in Example 7 to determine your BMI and whether you are at risk.
Data from in Example 7
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EXAMPLE 7 Solving a Combined Variation Problem Body mass index (BMI) is used to assess whether a person's weight is healthy. A BMI from 19 through 25 is considered desirable. BMI varies directly as an individual's weight in pounds and inversely as the square of his or her height in inches. A person who weighs 118 lb and is 64 in. tall has a BMI of 20. (BMI is rounded to the nearest whole number.) Find the BMI of a man who weighs 165 lb and is 70 in. tall. (Data from Washington Post.) BMI, W = weight, and h = height. Write a variation Let B equation. = B kw h² BMI varies directly as the weight. BMI varies inversely as the square of the height. To find k, let B = 20, w = 118, and h = 64.
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Related Book For
Intermediate Algebra
ISBN: 9780134895987
13th Edition
Authors: Margaret Lial, John Hornsby, Terry McGinnis
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