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4 years ago

Help! Not sure. I have to add more characters to ask this question... welp.

Mathematics

2 answers:

Vilka [71]4 years ago

5 0

Answer:

<em>The Answer Is C</em>

Step-by-step explanation:

timurjin [86]4 years ago

3 0

Answer: C

Step by step explanation:

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The total weight of the items Mikaila brought to the recycling center is 992.

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3 years ago

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topjm [15]

Answer: 170

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3 years ago

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3 years ago

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3 years ago

The number of kilograms of water in a human body varies directly as the mass of the body. An 87-kg person contains 58 kg of wat

katen-ka-za [31]

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:

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

$\frac{29*2}{29*3}=k$

$\frac{2}{3}=k$

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).

To find the amount of water in a 75-kg person, we will substitute $x=75$ in our given equation and solve for y.

$y=\frac{2}{3}(75)$

$y=2(25)$

$y=50$

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

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3 years ago