If 1 gallon water weighs 8.34 lbs., how much does 3.5 gallon weigh?

really?

If one drink costs $1.00, how much do 4 drinks cost?
Same thing here. Just multiply.

Or, if you know about units, consider that

lbs/gal * gal = lbs

Wt. = 8.34Lbs/gal * 3.5gal. =

To find out how much 3.5 gallons of water weighs, you can use a simple conversion factor.

Given that 1 gallon of water weighs 8.34 lbs, you can multiply this by 3.5 to get the weight of 3.5 gallons of water.

The calculation would be:

8.34 lbs/gallon * 3.5 gallons = 29.19 lbs

So, 3.5 gallons of water would weigh approximately 29.19 pounds.