Silver has a density of 0.04 lb/cm^3. A standard silver bar has a volume of 642

cm^3. To the nearest pound, how much does 1 standard silver bar weigh?

The weight of the mentioned silver bar is:

25.68 Lb

Step-by-step explanation:

Remember that the formula of density is:

Density = mass / volume.

From this formula, you can clear the mass (because this is the valor you need to solve the exercise), so you will have:

Mass = density * volume

With this last formula, you must replace the values given in the exercise:

Mass = density * volume Mass = 0.04 lb/cm^3 * 642 cm^3 Mass = 25.68 Lb

You can check this value using the original formula of density and see if the density has the same valor of the exercise:

Density = mass / volume. Density = 25.68 Lb / 642 cm^3 Density = 0.04 Lb / cm^3