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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

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emilykeoppen

Answer:

1100

Step-by-step explanation:

Answer:

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 = [tex]400 \times 2 = 800 gal/hr[/tex]

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

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