Respuesta :
Answer:
6 minutes
Step-by-step explanation:
- Set up the proportion as these two fractions equal to each other
9/3 = 18/x
2. Cross multiply so that 9*x=18*3
3. 9x=54, so now you divide 54 by 9
and this will give you
4. x= 6, so it will take 6 minutes to fill
up the 18 gallon pool
Hope this helped!