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Updated on: 15 Nov 2023, 11:54
Originally posted by Sajjad1994 on 24 Jun 2021, 21:00.
Last edited by BottomJee on 15 Nov 2023, 11:54, edited 2 times in total.
Last edited by BottomJee on 15 Nov 2023, 11:54, edited 2 times in total.
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Dropdown 1: 15
Dropdown 2: four times
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
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Question Stats:
50% (02:55) correct
50%
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wrong
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Use the drop-down menus to complete each statement according to the information in the graph.
1. For approximately consecutive hours each day, more than 50 percent of the population is awake.
2. The percent increase in the number of people sleeping from 8:00 pm to 10:00 pm is approximately that from 10:00 pm to 12:00 am.
Attachment:
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Dropdown 1: 15
Dropdown 2: four times
16 Aug 2021, 07:56
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Official Explanation
For approximately___________ consecutive hours each day, more than 50 percent of the population is awake.
The percentage of people who are asleep dips below 50% at about 7:00 am, and it doesn't exceed 50% again until just after 10:00 pm. That would make it approximately 15 straight hours during which more than half of the population is awake.
Answer: E
The percent increase in the number of people sleeping from 8:00 pm to 10:00 pm is approximately__________that from 10:00 pm to 12:00 am.
At 8:00 pm, the percentage of people asleep is about 9%. At 10:00 pm, that figure is about 43%. The new percentage is almost 5 times the number at 8:00 pm. But we arrive at the percent increase first by calculating the change of 43 – 9 = 34, then dividing the change by 9 (the original amount): \(\frac{34}{9}\) is about a 400% increase.
Then the figure at midnight is about 84%, which is about a 100% increase over the amount at 10:00 pm (43%). Therefore the percent increase from 8:00 pm to 10:00 pm (400%) is about four times as much as the percent increase from 10:00 pm to 12:00 am (100%), so the first answer choice is correct.
Answer: A
For approximately___________ consecutive hours each day, more than 50 percent of the population is awake.
The percentage of people who are asleep dips below 50% at about 7:00 am, and it doesn't exceed 50% again until just after 10:00 pm. That would make it approximately 15 straight hours during which more than half of the population is awake.
Answer: E
The percent increase in the number of people sleeping from 8:00 pm to 10:00 pm is approximately__________that from 10:00 pm to 12:00 am.
At 8:00 pm, the percentage of people asleep is about 9%. At 10:00 pm, that figure is about 43%. The new percentage is almost 5 times the number at 8:00 pm. But we arrive at the percent increase first by calculating the change of 43 – 9 = 34, then dividing the change by 9 (the original amount): \(\frac{34}{9}\) is about a 400% increase.
Then the figure at midnight is about 84%, which is about a 100% increase over the amount at 10:00 pm (43%). Therefore the percent increase from 8:00 pm to 10:00 pm (400%) is about four times as much as the percent increase from 10:00 pm to 12:00 am (100%), so the first answer choice is correct.
Answer: A
02 Jun 2025, 02:48
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and why aare we calculating % increase in percent? the percent increase would just be the absolute diffrence, the second part does not make sense.
Sajjad1994
