80 lb bag yields about 0.6 cu ft per Quikrete specs:fNote: the question really refers to concrete not cement.
A 94lb bag of cement typically contains a mixture of Portland cement, sand, and other additives. It is used as a key ingredient in concrete mixtures for construction projects.
No useful answer can be given without the necessary detail.The question needs to describe whether the cement alone will be used (or whether it will be used with sand, or with sand and aggregate, and what mix ratios), and the depth of the application.
70 lb = 31751.465 g or 31.751 Kilo's
This all depends on the mix you want. I assume you mean cement when you mention the 80lb bag of concrete. I have pushed concrete in my day... Bag cement mix is the same as concrete. Don't be funny. How many 80 pound bags will make 1 yard of concrete? I want a definitive answer this time.
In 2012, a 50 lb. bag of corn could cost as low as $10.50 per bag. At Tractor Supply stores, 50 lb. bags of corn cost $8.99 before taxes.
a 50 lb bag is between $15-18 dollars.
3 qts
There would be 55-60 cups of uncooked rice in a 25 lb bag, depending on the type of grain of rice.
500 dollars
60
Figure about 1/2 cubic foot per 60 lb bag. The basic formula is to use equal amounts of cement, sand, and gravel. There are 27 cubic yards per cubic foot. It depends upon how thick you are planning to pour the concrete. For one foot thick, you would need 9 cubic feet of concrete. For 6" thick, you would need 4 1/2 cubic feet. I'll give you the answers for 1 ft thick and for 6" thick. For 1 foot thick, you need 9 cubic feet at 1/2 cubic foot per 60 lb bag equals 18-60 lb bags. That's six 60 lb bags of concrete, plus six 60 lb bags of sand, plus 360 lbs of gravel. For 6 inches thick, divide each of these by 2 to give 3-60 lb bags of concrete, 3-60 lb bags of sand, plus 180 lbs of gravel.