Iris is asked to sweep the gymnasium floor after a basketball game. This requires her to push a sweeper from one end of the gym to the other and repeating the pattern until she has covered the entire floor. She completes 23 of the floor in 13 of an hour. At this rate, how long will it take her to complete the entire floor?(1 point) Responses 112 1 Start Fraction 1 over 2 End Fraction 12 hours Start Fraction 1 over 2 End Fraction hours 1 hour 1 hour 23 hours

1 answer

To find out how long it will take Iris to complete the entire floor, we need to determine the time it takes for her to complete 1 unit of the floor.

Iris completes 23 units of the floor in 1/3 of an hour.

To find out how long it takes her to complete 1 unit of the floor, we need to divide the time taken by the units completed.

1/3 hour ÷ 23 units = 1/69 of an hour

Therefore, it will take Iris 1/69 of an hour to complete 1 unit of the floor.

To find out how long it will take her to complete the entire floor, we need to multiply the time taken for 1 unit by the total number of units.

1/69 of an hour × 69 units = 1 hour

Therefore, it will take Iris 1 hour to complete the entire floor.