Answer:
A. The gallons of water in the tank are:
The gallons missing to fill the tank are:
Step-by-step explanation:
To solve the exercise we first find the volume of the tank with the formula:
Where:
r = Radius (remember that the radius is half the diameter)
h = Height (which in this case will be the length)
Replacing you get:
Having the volume of the cylinder, we find the volume of the water, using the volume formula, but this time you are going to take the measured 3 feet as the diameter, with which its radius would be 1.5 feet (since it is horizontal) :
To find the volume of water in gallons it is not necessary to take into account the conversion factor to cubic inches, but you can directly use the conversion factor between cubic feet and gallons that I present below:
1 cubic foot = 7.48052 gallons.
With this conversion factor we operate:
Now, to find the remaining volume to fill the tank, you must first subtract the volume of water from the volume of the tank:
Converting them to gallons gives: