The roll has 12.5 square feet of material.
A roll 2 foot by 30 foot contains 60 square feet. There are 144 square inches in a square foot. So the roll contains 8630 square inches = and you get all of these for 30 units of currency. I will assume that the unit of currency contains 100 smaller units. so the price is 3000 small units. This means that the cost per sq inch = 3000/8630 = 0.347 small units = just slightly more than one-third of the small unit.
2 x 10 x 36 = 720 square inches... 720 / 18 = 40 units !
20 sq ft = 20*12*12 = 2880 sq inches 8 inch * 10 inch = 80 sq inches. Maximum number of rectangles (NOT SQUARES!) is 2880/80 = 36. This is a maximum because the answer depends on the dimensions of the roll. If, for example, the roll were 1 ft*20 ft, you will get only 1 rectanle across and 30 along the length. You will have a 2 inch*20 ft strip of waste.
29 inches
The roll has 12.5 square feet of material.
There are 180 square inches in a roll of 1 inch x 10 yards. This is because 1 yard is equal to 36 inches, so 10 yards is 360 inches. Given that the width is 1 inch, the total area would be 1 inch x 360 inches = 360 square inches in the roll.
A roll 2 foot by 30 foot contains 60 square feet. There are 144 square inches in a square foot. So the roll contains 8630 square inches = and you get all of these for 30 units of currency. I will assume that the unit of currency contains 100 smaller units. so the price is 3000 small units. This means that the cost per sq inch = 3000/8630 = 0.347 small units = just slightly more than one-third of the small unit.
2 x 10 x 36 = 720 square inches... 720 / 18 = 40 units !
300 square feet.
120 x 13.3 1596 inches
37.5 square feet.
20 sq ft = 20*12*12 = 2880 sq inches 8 inch * 10 inch = 80 sq inches. Maximum number of rectangles (NOT SQUARES!) is 2880/80 = 36. This is a maximum because the answer depends on the dimensions of the roll. If, for example, the roll were 1 ft*20 ft, you will get only 1 rectanle across and 30 along the length. You will have a 2 inch*20 ft strip of waste.
29 inches
24 inches*50yards = 24 inches * 50*3*12 inches = 24 inches * 1800 inches = 43 200 square inches.
1 square foot = 144 square inches9 inches = 9/12 foot = 0.750.75 x 2,750 = 2,062.5 square feet = 297,000square inches
270 square feet.