Use the Formula for the Sum of the First N

question 122

Multiple Choice

Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
-A brick staircase has a total of 18 steps The bottom step requires 101 bricks. Each successive step requires 4 fewer bricks than the prior one. How many bricks are required to build the staircase?

• A) 1206 bricks
• B) 2430 bricks
• C) 2412 bricks
• D) 1170 bricks

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Definitions:

Different Segments

This refers to the division of a business into multiple parts for analysis, accounting, or management purposes, based on products, services, geographic locations, or customer types.

Increasing Costs

A situation where the costs of producing goods or services rise, possibly due to factors like inflation, increased labor costs, or higher material prices.

FIFO Method

A method of inventory valuation where the first items placed in inventory are the first sold, standing for "First In, First Out."

Inventory Amount

refers to the total cost or market value of all the goods and materials a company has in stock at a given time.