1tank of propane holds 5 gallons. 1 tank will last 12 hours. how many tanks will i need to to last 30 days if i use 8 hours a day.

if you are using the tank 8 hours a day for 30 days

that is 8*30 = 240 hours

1 tank      x tanks

 =

12 hours    240 hours

using cross products

1 * 240 = 12 * x

240 = 12 x

divide each side by 12

240/12 = 12x/12

20 = x

You will need 20 tanks

5.25 ounces

step-by-step explanation:

divided 3/4 and 6