Answer:
50 kg water.
Step-by-step explanation:
We have been given that the number of kilograms of water in a human body varies directly as the mass of the body.
We know that two directly proportional quantities are in form
, where y varies directly with x and k is constant of variation.
We are told that an 87-kg person contains 58 kg of water. We can represent this information in an equation as:
![58=k\cdot 87](https://tex.z-dn.net/?f=58%3Dk%5Ccdot%2087)
Let us find the constant of variation as:
![\frac{58}{87}=\frac{k\cdot 87}{87}](https://tex.z-dn.net/?f=%5Cfrac%7B58%7D%7B87%7D%3D%5Cfrac%7Bk%5Ccdot%2087%7D%7B87%7D)
![\frac{29*2}{29*3}=k](https://tex.z-dn.net/?f=%5Cfrac%7B29%2A2%7D%7B29%2A3%7D%3Dk)
![\frac{2}{3}=k](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D%3Dk)
The equation
represents the relation between water (y) in a human body with respect to mass of the body (x).
To find the amount of water in a 75-kg person, we will substitute
in our given equation and solve for y.
![y=\frac{2}{3}(75)](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B2%7D%7B3%7D%2875%29)
![y=2(25)](https://tex.z-dn.net/?f=y%3D2%2825%29)
![y=50](https://tex.z-dn.net/?f=y%3D50)
Therefore, there are 50 kg of water in a 75-kg person.
Population. Population is the amount of whatever is inisde
144, 4:6 simplifies to 2:3, if you divide 96 by 2 you get 48, and 48 x 3 = 144
Answer:
WXYZ = Ro(180°, (2, -3))(ABCD)
Step-by-step explanation:
A reflection across two perpendicular lines (y=-3, x=2) is equivalent to reflection across their point of intersection. That, in turn, is equivalent to rotation 180° about that point of intersection.
Your double reflection is equivalent to rotation 180° about (2, -3).
Just subtract 27 from 31.25
31.25-27=4.25
Brandon must cut 4.25 seconds