Tuklasin ang maliwanag na mga sagot sa iyong mga tanong sa IDNStudy.com. Anuman ang kahirapan ng iyong mga tanong, ang aming komunidad ay may mga sagot na kailangan mo.

Solve.
The number of kilograms of water in a human body varies directly as the total weight. A person weighing 63 kg contains 42 kg of water. How many kilograms of water are in a 90-kg person?

Help me po. Please. I really need it now.


Sagot :

body weight varies directly with weight of water in the body
 thus the equation is          W =  kw      where W = body wt
                                                              k = constant
                                                               w = weight of water
to solve this kind of problem we must first find the value of the
constant  k
thus      63=k42          >    k= 63/42
&            90 = 63/42 w
  w =  90*42/63  =  60kg  of water