Question 192737
The body mass index, I, can be used to determine an individual's risk of heart diease. An index of 25 indicates low risk. 
----------------------------------------------------------

The body mass index is given by the formula, or model, I=700W/H^2, where W= weight and H = height, in inches.
----------------------------------------------------------- 

Francis weighs 189 pounds and stands 68 inches tall. What is his approximate body mass? 
I = 700*189/68^2 = 28.61
-----------------------------

Find an inequality describing all weights W that Francis can have and be in the low risk category.
700*W/H^2 <= 25
700*W/68^2 <= 25
700W <= 115600
Weight <= 156.143 lbs.
=============================
Cheers,
Stan H.