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gogolik [260]
3 years ago
9

Can someone please help me

Mathematics
1 answer:
tankabanditka [31]3 years ago
6 0

14 \frac{1}{2}°

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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 y=kx, 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

Let us find the constant of variation as:

\frac{58}{87}=\frac{k\cdot 87}{87}

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\frac{2}{3}=k

The equation y=\frac{2}{3}x represents the relation between water (y) in a human body with respect to mass of the body (x).

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y=50

Therefore, there are 50 kg of water in a 75​-kg person.

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3 years ago
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