A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 29.7 cm3, and the mass in 139.943 g. What is the density of the rock?

wrong the actual formula is d=m/v

so you take the mass and divide it by volume
which is D=M/V= 399.9g/22.7 that is =1.76g/cm3=centemeter cube

i suck at math

well, since you're given v ery little info, you should expect the calculation to be relatively simple.

density is gm/cm^3. You are given two data: g of rock and cm^3 volume, so

density = 139.943g/29.7cm^3 = 4.712 g/cm^3

To find the density of an object, we need to divide its mass by its volume. In this case, the mass of the rock is given as 139.943 g and the volume is given as 29.7 cm3.

To calculate the density, we can use the following equation:

Density = Mass / Volume

Let's plug in the given values:

Density = 139.943 g / 29.7 cm3

By dividing the mass (139.943 g) by the volume (29.7 cm3), we can find the density of the rock.