You get out of school and walk orth for 20 minuties yo travel 1.6km what si the average velocity

The average velocity is:

4.8 km/hour

Step-by-step explanation:

1 hour = 60 minutes

20 minutes = 20/60 = 0.3333 hour

Proportions

1.6km ⇔  0.3333 hour

W km ⇔   1 hour

W = 1.6*1/0.3333

W = 4.8 km/hour

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

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:

where r denotes radius and h denotes height.

Hence, Volume of bucket is:

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.  

               Hence, the answer is:

                          3