Final answer:
To find the percentage of hotel rooms that were occupied during the convention, divide the number of occupied rooms by the total number of rooms and multiply by 100. The percentage of occupied hotel rooms is 10%.
Step-by-step explanation:
To find the percentage of hotel rooms that were occupied during the convention, we need to divide the number of occupied rooms by the total number of rooms and then multiply by 100 to express it as a percentage.
Let's use the given information:
Number of occupied rooms = 77
Number of unoccupied rooms = 693
Total number of rooms = occupied rooms + unoccupied rooms = 77 + 693 = 770
To find the percentage occupied, we calculate:
Percentage occupied = (occupied rooms / total rooms) * 100
Percentage occupied = (77 / 770) * 100 = 10%
Therefore, the percentage of hotel rooms in the city that were occupied during the convention is 10% (option a).