# SOLUTION: The body mass index, I, can be used to determine an individuals risk for heart disease. An index less than 25 indicates a low risk. The body mass index is given by the formula or

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 Question 145948: The body mass index, I, can be used to determine an individuals risk for heart disease. An index less than 25 indicates a low risk. The body mass index is given by the formula or model where w=weight, in pounds and h=height, in inches. Francis weighs 168 pounds and stands 68 inches tall. What is his approximate body mass index? Find an inequality describing all weights w that Francis can have and be in the low-risk category.Answer by jim_thompson5910(28476)   (Show Source): You can put this solution on YOUR website!"What is his approximate body mass index?" Start with the given equation. Plug in and Multiply and to get . Square to get . Divide. So his approximate body mass index is about 25.43 ------------------------------- "Find an inequality describing all weights w that Francis can have and be in the low-risk catergory." Start with the given equation. Plug in Set the left side less than 25. Square to get . Multiply both sides by . Divide both sides by to isolate w. So any weights less than 165 pounds will put him in the low-risk category.