Determine Which One of the Ordered Triples Below Is a Solution

question 24

Multiple Choice

Determine which one of the ordered triples below is a solution of the given system of equations.
$$\left\{ \begin{array} { l } 8 x + 6 y - 4 z = 74 \\x - 5 y + 8 z = - 102 \\5 x - 3 y + 2 z = - 46\end{array} \right.$$

• A) \(( 4,7,0 )\)
• B) \(( - 1,9 , - 7 )\)
• C) \(( 9,7,1 )\)
• D) \(( 4,7 , - 7 )\)
• E) \(( - 7,9 , - 1 )\)

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Definitions:

Periodic Inventory System

An inventory accounting system where updates to inventory levels are made on a periodical basis rather than transaction by transaction.

Net Method

An accounting practice where purchase discounts are recorded immediately by reducing the price of the goods bought, assuming the discount will be taken.

Journal Entries

The records of financial transactions in the accounting system, documented in chronological order.

Voucher

A document that serves as evidence for a transaction and authorizes the payment or receipt of money.