Answer :
Final answer:
To calculate Anne's total weight, you find the weight of the 'other elements' by subtracting 20.4 kg from the weight of the oxygen. Then, you add the weights of the oxygen, hydrogen, and 'other elements' together. The total weight is 62.9 kg.
Explanation:
To find Anne's total weight, we add the weight of the oxygen, hydrogen and other elements in her body. We are told the weight of the oxygen is 38.6 kg, the weight of the hydrogen is 6.1 kg and that the weight of the other elements in Anne's body is 20.4 kg less than the weight of the oxygen.
First, let's determine the weight of the other elements. Since it's 20.4 kg less than the weight of the oxygen, we subtract 20.4 kg from 38.6 kg. This gives 18.2 kg.
Next, we add the weights of the oxygen, hydrogen, and other elements to get Anne's total weight: 38.6 kg (oxygen) + 6.1 kg (hydrogen) + 18.2 kg (other elements) = 62.9 kg. So, Anne's total weight is 62.9 kg.
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