Greg is 1.7 times faster at cleaning windows than Owen. It takes 39 minutes for them to clean 100 windows together. Using a rational equation, calculate how long it would take Owen to clean 100 windows by himself. Round the answer to the nearest tenth. (1 point)

Question

minutes

Answer 1

Let x be the amount of time it would take Owen to clean 100 windows by himself.
Therefore, Greg would take 1.7x amount of time to clean 100 windows by himself.
The total time it takes for them to clean 100 windows together is x + 1.7x = 2.7x.
Since the total time is 39 minutes, we can set up the equation 2.7x = 39.
Dividing both sides of the equation by 2.7, we get x = 14.4.
Therefore, it would take Owen approximately 14.4 minutes (rounded to the nearest tenth) to clean 100 windows by himself.