Answer:
Hence, the number of times will Gus need to fill the bucket to completely fill the fish tank if he doesn't spill a drop is:
3 times
Explanation:
The amount of water that a tank can hold is: 4710 inches cube.
This means that the volume of tank is: 4710 cubic inches.
Also, the bucket is in the shape of a cylinder with radius 5 inches and height 20 inches.
This means that the Volume of bucket is given by:
![Volume=\pi r^2h](https://img.qammunity.org/2020/formulas/mathematics/middle-school/df56yk4lsc2jxz965kacwoktfkgt0thgok.png)
where r denotes radius and h denotes height.
Hence, Volume of bucket is:
![Volume=\pi* (5)^2* 20\\\\\\Volume=3.14* 25* 20\\\\\\Volume=1570\ cubic\ inches](https://img.qammunity.org/2020/formulas/mathematics/middle-school/nlgnepv5xk4q4duqx6nrci5vmxo1rb9qni.png)
Let n be the number of times Gus need to fill the bucket to completely fill the fish tank
Hence, we have:
Volume of fish tank= n × Volume of Bucket
i.e.
![4710=n* 1570\\\\i.e.\\\\n=(4710)/(1570)\\\\n=3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/baikynmav02a67ekctu7gc2mpdmelrq1yk.png)
Hence, the answer is:
3