Solve the Problem. Round as Appropriate

question 207

Multiple Choice

Solve the problem. Round as appropriate.
-The shadow cast by an object on a sunny day varies directly as the height of the object. If a person 76 inches tall casts a shadow 62 inches long, how tall is a tree which casts a shadow 31 feet in length?

• A) 69 feet
• B) 38 feet
• C) 152 feet
• D) 25.29 feet

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Definitions:

Private-Values Auction

A type of auction in which each bidder knows their own valuation of the item for sale, but this valuation is private and may differ from that of other bidders.

English Auction

A type of auction where bidders openly bid against one another, and the item is sold to the highest bidder.

Examine

To inspect or scrutinize carefully.

Vickrey Auction

A type of sealed-bid auction where the highest bidder wins but pays the price bid by the second-highest bidder.