Question 1190234: How many gallons would a fish tank be that is 4 ft long 21 inches deep and 13 in wide thank you
Answer by math_tutor2020(3817)   (Show Source):
You can put this solution on YOUR website!
1 foot = 12 inches
4 feet = 48 inches (multiplied both sides by 4)
The tank is 48 inches by 21 inches by 13 inches
The volume is
length*width*height = 48*21*13 = 13,104 cubic inches
Since
1 gallon = 231 cubic inches (exact)
this means we divide by 231 to convert from cubic inches to gallons
13,104 cubic inches = (13104/231) gallons
13,104 cubic inches = 56.72727 gallons approximately
If you want to round to the nearest whole gallon, then it would be 57 gallons.
The conversion factor for cubic inches to gallons is something you either memorize, or have on a reference sheet somewhere.
|
|
|
