Tammy and Tad's Father Has Given Each of Them a Debit

question 3

Essay

Tammy and Tad's father has given each of them a debit card and allows each of them to use the card to spend $500 each month. Tammy and Tad use their $500 to buy only CDs and gasoline. In February, the price of a CD was $10 and the price of gasoline was $1 per gallon. At these prices, Tammy purchased 45 CDs and 50 gallons of gas. Ted consumed 20 CDs and 300 gallons of gas. For the month of March, Tammy and Tad's father lost the records indicating who had which debit card. From the bank statement in March, their father learned that the price of a CD was $12 and a gallon of gas cost $0.80. The first debit card was used to purchase 235 gallons of gas and 26 CDs. The second debit card was used to purchase 265 gallons of gas and 24 CDs. Using revealed preference theory, identify which card Tammy must possess.

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Definitions:

Continuous Block

A term that may refer to a sequence of data storage units or programming instructions that are used continuously without interruption, but without a standard definition in this form, its specific meaning can vary by context.

DINT-Type Tags

Variables in PLC programming that represent Double Integer values, used for storing larger integers that cannot be held by single integer (INT) types.

Binary Integers

Integers that are represented in the binary numeral system, which is a number system that uses only two symbols: typically 0 and 1.

Program Scope Tags

Variables defined within a particular program or routine in PLC programming, accessible only within that program's scope for organizing and managing data.