Posted by tyler on .
Bottled water costs $0.55 for a 0.5 liter bottle. What would it cost to fill a bathtub with bottled water. The bathtub holds 7.13 cubic feet of water. (Recall that 1.00 inch = 2.54 cm, and that a liter is exactly 1000 cm3).

physics 
drwls,
7.13 ft^3 = 7.13 ft^3*1728in^3/ft^3*(2.54)^3cm^3/in^3
= 2.019*10^5 cm^3
= 201.9 liters
= 404 half liter bottles
Compute the cost