Question 1161916
w, kilograms of water
p, kilograms of a person (body)
k, variation constant


{{{w=kp}}}


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An 87​-kg person contains 58 kg of water. 
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{{{k=w/p}}}

{{{k=58/87}}}

{{{highlight(w=(58/87)p)}}}


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How many kilograms of water are in a 60​-kg ​person?
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You can do this because you have the whole formula.






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Note,  {{{87=3*29}}} and {{{58=2*29}}}.