To find the estimated number of minutes left, we first round both the number of minutes Jill watched (72 minutes) and the total movie length (149 minutes) to the nearest tens place.
- 72 rounded to the nearest tens place is 70.
- 149 rounded to the nearest tens place is 150.
Next, we calculate the estimated minutes left: \[ \text{Estimated minutes left} = \text{Rounded total movie length} - \text{Rounded minutes watched} = 150 - 70 = 80 \text{ minutes} \]
Now, to find the actual number of minutes left, we subtract the actual minutes Jill watched from the total movie length: \[ \text{Actual minutes left} = \text{Total movie length} - \text{Actual minutes watched} = 149 - 72 = 77 \text{ minutes} \]
In summary:
- Estimated minutes left: 80 minutes
- Actual minutes left: 77 minutes
3 answers