To determine who spends less time on homework per night, we need to calculate the average number of hours spent on homework per day for both Marco and Maribella.
Marco's Homework:
- 3 Days: 3.25 hours → 3.25 / 3 = 1.0833 hours per day
- 9 Days: 9.75 hours → 9.75 / 9 = 1.0833 hours per day
- 12 Days: 13.0 hours → 13.0 / 12 = 1.0833 hours per day
- 30 Days: 32.5 hours → 32.5 / 30 = 1.0833 hours per day
Average for Marco: (1.0833 + 1.0833 + 1.0833 + 1.0833) / 4 = 1.0833 hours per day
Maribella's Homework:
- 4 Days: 4.2 hours → 4.2 / 4 = 1.05 hours per day
- 8 Days: 8.4 hours → 8.4 / 8 = 1.05 hours per day
- 20 Days: 21.0 hours → 21.0 / 20 = 1.05 hours per day
- 28 Days: 29.4 hours → 29.4 / 28 = 1.05 hours per day
Average for Maribella: (1.05 + 1.05 + 1.05 + 1.05) / 4 = 1.05 hours per day
Comparison:
- Marco: 1.0833 hours per day
- Maribella: 1.05 hours per day
Conclusion: Marco spends more time on homework per day than Maribella. Therefore, the correct statement is:
Marco spends less time on homework per night. This statement is false.
Maribella spends less time on homework per night. This statement is true.
The correct response is: Maribella spends less time on homework per night.