To determine which statement is correct regarding the homework hours spent by Marco and Maribella, we can analyze the data provided in the tables.
Marco's Homework:
- 3 days: 3.25 hours
- 9 days: 9.75 hours
- 12 days: 13.0 hours
- 30 days: 32.5 hours
We can calculate the average hours of homework per day for Marco:
- For 3 days: 3.25 hours ÷ 3 days = 1.08 hours/day
- For 9 days: 9.75 hours ÷ 9 days = 1.08 hours/day
- For 12 days: 13.0 hours ÷ 12 days = 1.08 hours/day
- For 30 days: 32.5 hours ÷ 30 days = 1.08 hours/day
Average for Marco: 1.08 hours/day
Maribella's Homework:
- 4 days: 4.2 hours
- 8 days: 8.4 hours
- 20 days: 21.0 hours
- 28 days: 29.4 hours
We can calculate the average hours of homework per day for Maribella:
- For 4 days: 4.2 hours ÷ 4 days = 1.05 hours/day
- For 8 days: 8.4 hours ÷ 8 days = 1.05 hours/day
- For 20 days: 21.0 hours ÷ 20 days = 1.05 hours/day
- For 28 days: 29.4 hours ÷ 28 days = 1.05 hours/day
Average for Maribella: 1.05 hours/day
Conclusion:
- Marco spends an average of 1.08 hours per day on homework.
- Maribella spends an average of 1.05 hours per day on homework.
Based on this analysis, we can now evaluate the options given:
A. Marco and Maribella spent equal time doing their homework.
- Incorrect: They have different average times.
B. Maribella spends less time on homework per night.
- Incorrect: Marco spends more time (1.08 hours > 1.05 hours).
C. Marco spends less time on homework.
- Incorrect: Marco spends more.
D. There is not enough information to tell who spends less time doing their homework.
- Incorrect: We have already calculated the averages and compared them.
Final Answer: None of the statements provided accurately represent the findings. Marco spends more time on homework than Maribella on average.