A Geology Student Found an Irregularly Shaped Rock, with a Mass

question 20

Multiple Choice

A geology student found an irregularly shaped rock, with a mass of 28.63 grams, and placed it into a graduated cylinder containing 13.31 mL of water. If the water level increased to 19.73 mL after the rock was placed in the cylinder, what is the density of the rock, in g/mL?

• A) 4.46 g/mL
• B) 4460 g/mL
• C) 2.20 g/mL
• D) 0.455 g/mL
• E) 44.6 g/mL

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Definitions:

Average-cost Method

An inventory costing method that calculates the cost of goods sold and ending inventory based on the average cost of all similar items available during the period.

Cost of Goods Sold

The specific costs incurred during the manufacturing of a company's merchandise for sale.

Inventory

The raw materials, work-in-process products, and finished goods considered to be the portion of a business's assets that are ready or will be ready for sale.

Ending Inventory

The value of goods available for sale at the end of an accounting period, not yet sold.