Number of Days Number of Hours
3 3.25
9 9.75
12 13.0
30 32.5
Maribella’s Homework
Number of Days Number of Hours
4 4.2
8 8.4
20 21.0
28 29.4
Based on the tables showing the hours of homework done by Marco and Maribella for different periods of time, which statement is correct?
(1 point)
Responses
Marco and Maribella spend equal time doing their homework.
Marco and Maribella spend equal time doing their homework.
There is not enough information to tell who spends less time doing their homework.
There is not enough information to tell who spends less time doing their homework.
Marco spends less time on homework per night.
Marco spends less time on homework per night.
Maribella spends less time on homework per night.
Marco spends less time on homework per night.
To determine who spends less time on homework per night, we can compare the average number of hours each of them spends per day.
For Marco:
- Summing up the total hours for each period: 3.25 + 9.75 + 13.0 + 32.5 = 58.5
- Summing up the total number of days for each period: 3 + 9 + 12 + 30 = 54
- Calculating the average hours per day: 58.5 / 54 ≈ 1.083 hours per day
For Maribella:
- Summing up the total hours for each period: 4.2 + 8.4 + 21.0 + 29.4 = 63.0
- Summing up the total number of days for each period: 4 + 8 + 20 + 28 = 60
- Calculating the average hours per day: 63.0 / 60 ≈ 1.050 hours per day
Comparing the averages, we find that Marco spends less time on homework per night as he has an average of approximately 1.083 hours per day, while Maribella has an average of approximately 1.050 hours per day.
Therefore, the correct statement is: Marco spends less time on homework per night.
Based on the tables provided, we can compare the average amount of time Marco and Maribella spend on homework per night.
For Marco:
- For 3 days, he does 3.25 hours of homework, which averages to approximately 1.08 hours per day.
- For 9 days, he does 9.75 hours of homework, which averages to approximately 1.08 hours per day.
- For 12 days, he does 13.0 hours of homework, which averages to approximately 1.08 hours per day.
- For 30 days, he does 32.5 hours of homework, which averages to approximately 1.08 hours per day.
For Maribella:
- For 4 days, she does 4.2 hours of homework, which averages to approximately 1.05 hours per day.
- For 8 days, she does 8.4 hours of homework, which averages to approximately 1.05 hours per day.
- For 20 days, she does 21.0 hours of homework, which averages to approximately 1.05 hours per day.
- For 28 days, she does 29.4 hours of homework, which averages to approximately 1.05 hours per day.
Based on this information, we can conclude that both Marco and Maribella spend approximately the same amount of time on homework per night, which is around 1.08 hours. Therefore, the correct statement is:
Marco and Maribella spend equal time doing their homework.