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 pls choice

1 answer

To find out how long it will take Iris to complete the entire floor, we can use ratios.

If Iris completed 23% of the floor in 1/3 of an hour, then we can set up the following proportion:

23/100 = x/1

To solve for x, we can use cross multiplication:

100x = 23

Dividing both sides by 100 gives:

x = 23/100

Converting this fraction to a decimal gives:

x = 0.23

Therefore, it will take Iris 0.23 hours to complete the entire floor.

Since 0.23 hours is equivalent to 0.23 * 60 = 13.8 minutes, we can round up to the nearest minute.

Therefore, it will take Iris approximately 14 minutes to complete the entire floor.

The correct response is 14.