The rational function y=19800/x models the time, in hours, needed to fill a swimming pool, where x is the flow rate of the hose, in gallons per hour. three hoses – two with a flow rate of 400  gal/hr and one with a flow rate of 300 gal/hr – are used to fill the pool. what is the total flow rate if all three hoses are used? gal/hr

1100 gal/hr

Step-by-step explanation:

Given : Three hoses – two with a flow rate of 400 gal/hr and one with a flow rate of 300 gal/hr – are used to fill the pool.

To Find: What is the total flow rate if all three hoses are used? gal/hr

Solution:

Out of three,Two hoses with a flow rate of 400 gal/hr  each

So, flow rate of 2 hoses =

Third hose flow rate = 300 gal /hr

Now we are supposed to find the total flow rate if all three hoses are used

So, total flow rate = (300+800)gal/hr =1100 gal/hr

Hence the total flow rate if all three hoses are used is 1100 gal/hr

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.