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27 May, 07:56

Tyler is building a fish tank in the shape of a sphere that has a diameter of 20 inches. Based on Tyler's research, it is recommended to have no more than 1 goldfish for every 693 cubic inches of water. How many goldfish should Tyler buy for his fish tank?

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Answers (2)
  1. 27 May, 08:09
    0
    What about 18 inches in diameters?

    Step-by-step explanation:

    My question that i recently have is 18 inches instead of 20 and I don't completely understand how you solved that problem like I tried going along with it but I was thing maybe because you used 20 inches in diameters you divide 10 from 2 because its half of 20 so I tried 9 but I still don't really understand the whole thing.
  2. 27 May, 08:18
    0
    Answer: 6 fishes

    Step-by-step explanation:

    Hi, to answer this question we have to apply the next formula:

    Volume of a sphere = 4/3 x π x (diameter/2) ^3

    Replacing with the values given:

    V = 4/3 x π x (20/2) ^3

    v = 4/3 x π x (10) ^3 = 4,188.79 in3

    Finally, we have to divide the volume of the fish tank by the volume that each goldfish needs.

    4,188-79 / 693 = 6.04 = 6 fishes

    Feel free to ask for more if needed or if you did not understand something.
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