To find out how many more grams of potassium the athlete needs to reach the recommended amount of 4.5 grams per day, follow these steps:
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Calculate Total Potassium Intake from the Banana and Orange Juice:
- Potassium from the banana: 0.54 grams
- Potassium from the orange juice: 0.372 grams
- Total potassium intake = potassium from banana + potassium from orange juice
\[ \text{Total potassium} = 0.54 , \text{grams} + 0.372 , \text{grams} = 0.912 , \text{grams} \]
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Determine the Recommended Amount of Potassium:
- Recommended potassium intake: 4.5 grams
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Calculate the Shortfall:
- To find out how much more potassium the athlete needs, subtract the total potassium she has already consumed from the recommended amount.
\[ \text{Additional potassium needed} = \text{Recommended potassium} - \text{Total potassium} \] \[ \text{Additional potassium needed} = 4.5 , \text{grams} - 0.912 , \text{grams} = 3.588 , \text{grams} \]
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Final Result: The athlete needs 3.588 grams more of potassium to reach the recommended intake of 4.5 grams.
In summary: the athlete needs 3.588 grams of potassium more after consuming the banana and orange juice to meet the recommended daily intake.