Algebra
posted by Tom on .
The body mass index I can be used to determine an individuals risk for heart disease. An index less than 25 indicates low risk. the formula for body mass index is I=700w/H^. W=weight and H=height, Jeromine is 67 inches tall. What weights will keep his body mass index between 22 & 32

I = 700W/h^2.
His Bmi should be > 22 but < 32.
700W/h^2 > 22
Multiply both sides by h^2/700:
W > (h^2/700)*22
W > (67^2/700)*22
W > 141.1 Lbs.
W < (67^2/700)*32
W < 205 Lbs.
Solution set: 141 < W < 205.