Question

Casandra finds a treasure chest packed with metallic coins. The chest has a volume of 0.25^30.25 m

3
0, point, 25, start text, space, m, end text, cubed. The coins have a combined mass of 4825\text{ kg}4825 kg4825, start text, space, k, g, end text. Hoping to find gold, she calculates the density to determine the metal of the coins.

Answer 1

Gold

Explanation:

Casandra finds a treasure chest packed with metallic coins. The chest has a volume of 0.25 cubic meters. The coins have a combined mass of 4825 kg. Hoping to find gold, she calculates the density to determine the metal of the coins.

What kind of metal are the coins made of?

Bronze (8700 kg per cubic meter)

Silver (10500 kg per cubic meter)

Lead (11300 kg per cubic meter)

Gold (19300 kg per cubic meter)

Density is mass per volume:

D = M / V

D = (4825 kg) / (0.25 m³)

D = 19,300 kg/m³

The coins must be made of gold.