Find the mass of one cubic meter of the alloy if the ingot of this alloy, which has the shape of a rectangular

Find the mass of one cubic meter of the alloy if the ingot of this alloy, which has the shape of a rectangular parallelepiped with dimensions of 0.25 m, 8.5 cm and 1.2 dm, has a mass of 20, 655 kg.

1. First, you should express all measurements of a piece of alloy, given in the condition, in meters, we get:
0.25 m = 0.25 m.
8.5 cm = 0.085 m.
1.2 dm = 0.12 m.
2. Now we find out what the volume of a piece of marble is equal to, as the product of all its measurements, we get:
0.25 * 0.085 * 0.12 = 0.00255 m3.
3. Now it is easy to find out the mass of 1 m3 of a piece of marble, dividing the mass of the above-described piece of marble by its volume, expressed in cubic meters, we get:
20.655 kg / 0.00255 m3 = 8100 kg.
Answer: we got the mass of 1 m3 of alloy, equal to 8100 kg.