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The formula to compute a person's body mass index is B = 700 x W/H2 (W/H2 means W/h squared, the h is squared)

Part A: Solve B = 700 x W/h2 for the variable W.

Part B: What is the weight to the nearest pound of a person who is 64 inches tall and has a body mass index of 21.45?

Sagot :

RSTalbut
By "solve" in part A, do you mean make W the subject of the formula? In which case:
A:  B = 700 x W/h2
     B x h2 =700 x W
     (B x h2)/700=W
B: (21.45 x 64^{2})/700=W
     87859.2/700=W
     126=W
     126 pounds
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