Question

Jose has a fish tank that measures 11.8 inches wide, 19.7 inches long, and 15.7 inches deep. He empties it halfway to clean it. To refill it when he is done, he will fill a one-gallon jug in the sink and carry it to the tank, pour it in, and then return to the sink again.

Convert the dimensions of the tank to centimeters. Round all measurements to the nearest whole centimeter.
How many liters does Jose need to add to the tank to fill it? (Reminder: 1 liter = 1000 cubic centimeters)
How many times will Jose need to carry the jug from the sink to the tank?

Answer 1

rather than convert each dimension, let's just convert in^3 to cm^3 at the end:

11.8*19.7*15.7 * 2.54^3 cm^3

Note that he holy has to fill 1/2 the tank.

Now you know how many liters, just convert that to gallons to find how many trips it will take.

Answer 2

of course, this is a stupid question, since the tank and the jug are in gallons, who cares how many liters it is?

1 gallon = 231 in^3

Answer 3

3.10998E14