First of all, find out the volume of the piece:
V = 12 x 12 x 12
V = 1728 cm3
The density of aluminum is 2.70 g cm-3 therefore all you have to do is:
1728 x 2.7 = 4665.6 grams ---> 4.6656kg.
12
1,728
42+4y -12 = 13y -12 -2y 4y -13y+2y = 12 -12 -42 -7y = -42 y = 6
12 x 5 = 60 That's because 12 x 100 = 600 12/2 = 6
4x + 6 = 6x - 12-4x -4x6 = 2x - 12+12 +1218 = 2xx=9
It depends on the length and width of the plate, and the thickness. A 12 x 12 inch piece of plate aluminum which is 1/2 inch thick has the same length and width as a 12 x 12 inch piece which is 1/4 inch thick, but the 1/2 inch piece will weigh twice as much.
you weigh 12 stone
Around 100-127 Ibs I'm 12 and I weigh 116
12
12
they weigh about 12-15 kg
TO answer this question, you need to know the density and the volume of the piece of steel. For example, "mild steel" weighs .284 pounds per cubic inch. The volume of a 12 inch x 12 inch x 1 inch piece of steel is 12 * 12 * 1 = 144 cubic inches. .284 pounds/inch^3 * 144 inch^3 = 40.896 pounds. So each of these steel tiles will weigh about 41 pounds.
12 to 15 lasagna noodles weigh about 12 oz (375 g)
12 pounds on the Moon.
12 pounds
12-17 pounds
12 pounds