To find out how long it will take Sarah to walk to her friend's house, we first need to determine her walking speed in miles per minute.
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Calculate her walking speed:
- She walks \( \frac{2}{3} \) mile in 16 minutes.
- To find her speed in miles per minute, we can use the following formula: \[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} = \frac{\frac{2}{3} \text{ miles}}{16 \text{ minutes}} = \frac{2}{3} \times \frac{1}{16} = \frac{2}{48} = \frac{1}{24} \text{ miles per minute} \]
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Determine the time to walk 1 mile:
- Now, we can calculate how long it will take her to walk 1 mile: \[ \text{Time} = \frac{\text{Distance}}{\text{Speed}} = \frac{1 \text{ mile}}{\frac{1}{24} \text{ miles per minute}} = 1 \times 24 = 24 \text{ minutes} \]
Therefore, it will take Sarah 24 minutes to walk to her friend's house.