SOLUTION: how high must a 400-gallon rectangular tank be if the base is a square 3ft 9 in. on a side? (1 cu ft = 7.48)

Algebra ->  Volume -> SOLUTION: how high must a 400-gallon rectangular tank be if the base is a square 3ft 9 in. on a side? (1 cu ft = 7.48)       Log On


   

Question 865807: how high must a 400-gallon rectangular tank be if the base is a square 3ft 9 in. on a side? (1 cu ft = 7.48)
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Let z = height in feet

3 ft. 9 in. is 3.75 feet.
volume is 3.75%2A3.75%2Az%28ft%2Aft%2Aft%29=400%2Agallons%281%2Aft%5E3%2F%287.48%2Agallons%29%29
highlight_green%28%283.75%29%5E2%2Az=400%2F7.48%29
Solve for z.