1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

A cubic foot is equal 7.48 gallons. How many cubic feet wil

  1. Dec 21, 2014 #1
    1. The problem statement, all variables and given/known data
    2. A cubic foot is equal 7.48 gallons. How many cubic feet will the tank describe in question #6 hold?

    2. Relevant equations


    3. The attempt at a solution

    Tank has a volume of 8000 gallons.

    1 feet3 = 7.44 gallons (given)

    Therefore,

    8000 gallon = 8000gallon x feet3/7.44gallon= 107527feet
     
  2. jcsd
  3. Dec 21, 2014 #2

    Mark44

    Staff: Mentor

    Your answer should be in units of cubic feet, not feet (usually written as cu. ft of ft3). When you write exponents, at the very least use ^ to indicate an exponent.

    Your numerical answer is way off. Without getting bogged down too much with numbers, let's say for the purpose of a rough calculation that a gallon is equal to 8 cu. ft. Without using a calculator, how many cubic feet would this be? You should be able to do this in your head.
     
  4. Dec 21, 2014 #3
    Actually, a gallon is ~1/8 cu. ft.

    But, jim1174, do you really think that 8000/7.48 > 100000 ?

    Chet
     
  5. Dec 21, 2014 #4

    Mark44

    Staff: Mentor

    I must have written that without thinking very hard. Yes, a cubic foot is about 8 gallons, so 1 gal. ##\approx## 1/8 cu. ft.
     
  6. Dec 22, 2014 #5
    ok i think i got it gallon.jpg
     
  7. Dec 22, 2014 #6

    Mark44

    Staff: Mentor

    It depends. In your first post you have 7.44 gal./cu. ft in one place and 7.48 gal./cu. ft. in another place. Which is it?

    You need to be more careful. I've seen several mistakes like this in your work.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: A cubic foot is equal 7.48 gallons. How many cubic feet wil
  1. How many coils ? (Replies: 1)

  2. Linear/Cubic Regression (Replies: 10)

Loading...