SOLUTION: The Body Mass Index,I,can be used to determine an individual's risk for heart disease. An index below 25 indicates a low risk. The body mass index is given by the formula I=700W

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Question 235882: The Body Mass Index,I,can be used to determine an individual's risk for heart disease. An index below 25 indicates a low risk. The body mass index is given by the formula I=700W
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H^2 where W=weight in pounds, and H=height in inches.
Jerome is 70 inches tall. What weight will keep his body mass index between 20 and 28?
Jerome's body mass index will fall between 20 and 28 for the set of all weights such that ? I can't seem to figure out how to do this problem without a weight given....
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
The Body Mass Index,I,can be used to determine an individual's risk for heart disease. An index below 25 indicates a low risk. The body mass index is given by the formula:
I = %28700W%29%2FH%5E2
where:
W=weight in pounds,
and
H=height in inches.
;
Jerome is 70 inches tall. What weight will keep his body mass index between 20 and 28?
:
Use an index of 24, for a height of 70, find w
24 = %28700W%29%2F70%5E2
:
24 = %28700W%29%2F4900
:
24 * 4900 = 700W
:
117600 = 700W
W = 117600%2F700
W = 168 lb should have an index of 24
;
:
Check on calc: enter (700*168)/70^2 = 24