Inlet pipe can fill the pool in 6 hours, means: every hour the pool is filled 1/6
a drain can empty the pool in 9 hours, means: every hour the pool is drained 1/9
If the inlet and the drain are both left open, every hour the pool is filled 1/6-1/9=1/18
It will take 18 hours to fill up the pool.
Answer:
Your answer is Slope-intercept form.
Step-by-step explanation:
Hi!


<u>Explanation: </u><u><em>This question is super super easy! You had to used PEMDAS for order of operations. First multiply by 5*4=20, from left to right. Then 32+20=52 and it gave us the answer is 52 is the right answer. Hope this helps! And thank you for posting at here on Brainly. And have a great day. -Charlie </em></u>