annes body contains 38.6 kg of oxygen, 6.1 is hydrogen, and the rest other elements. the weight of other elements is 20.4 kg less than the weight of oxygen. how much does Anna weigh?

Answer 1

Let's break down the problem step by step.

1. Weight of Oxygen: 38.6 kg

2. Weight of Hydrogen: 6.1 kg

3. Weight of Other Elements: According to the problem, the weight of other elements is 20.4 kg less than the weight of oxygen.

   To find the weight of the other elements: \[ \text{Weight of Other Elements} = \text{Weight of Oxygen} - 20.4 \text{ kg} = 38.6 \text{ kg} - 20.4 \text{ kg} = 18.2 \text{ kg} \]

4. Total Weight of Anna's Body: Now we can find the total weight by adding up the weights of oxygen, hydrogen, and the other elements: \[ \text{Total Weight} = \text{Weight of Oxygen} + \text{Weight of Hydrogen} + \text{Weight of Other Elements} \] \[ \text{Total Weight} = 38.6 \text{ kg} + 6.1 \text{ kg} + 18.2 \text{ kg} = 62.9 \text{ kg} \]

Thus, Anna weighs 62.9 kg.