Question

The number of kilograms of water in a person's body varies directly as the person's mass. A person with a mass of 90 kg contains 60 kg of water. How many kllograms of water are in a person whose mass is 75 kg?
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Answer 1

Answer:

50 kilograms

Step-by-step explanation:

The example had a ratio of 90:60, which simplifies down to 3:2 (just like a fraction), and 90 divided by 3/2 is equal to 60

If we apply that ratio to 75, we do the same thing. 75 divided by 3/2, or 75 multiplied by 2/3, or 50. (75/3=25, 25*2=50)

Answer 2

The number of  kilograms of water are in a person whose mass is 75 kg is 50 kilograms

Given that,

• A person with a mass of 90 kg contains 60 kg of water.

Based on the above information, the calculation is as follows:

Here 90:60

So 3:2

Now since the mass is 75

so,

$= 75\div 3\times 2$

= 50

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