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How many linear feet in a roll of R13 insulation?
32
How many rolls of insulation do you need for 500 square feet of walls?
If each roll comprises n sq feet then you will need [500/n] rolls, rounded UP to the next whole number. So for example, 4.1 rolls is 5 rolls, not the nearest whole number.
How much carpet is needed for a room 12' x 20' and 15' x 15'?
The 12 x 20 foot room has an area of 240 square feet, and the 15 x 15 foot room has an area of 225 square feet. That's 465 square feet of carpet. But hold the phone. Carpet is generally sold by the square yard, and a square yard is 9 square feet (as 3 feet x 3 feet is 9 square feet). The 465 square feet of floor is 51.666... or 52 square yards of carpet. It might be necessary to buy some "extra" area depending on the width of the "stock" roll of carpet from which the desired pattern/color of carpet is going to be cut.
How many lineal feet are in a roll of rubber 36 wide x 50 long?
50.
Which shape does not roll or stack between cone or cube or square pyramid?
The square based pyramid does not stack or roll.
