QUESTION 2 (14 MARKS) ^-(3) -5), write down, if possible, the product AB. John is...

 

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QUESTION 2 (14 MARKS) ^-(3) » -5), write down, if possible, the product AB. John is twice as old as Mary. Five years ago, John was three times as old as Mary. Let John's present age be x and Mary's present age be y. 2.2.1 Write down the two equations that represent the given information in their simplest forms. (4 marks) (6 marks) 2.1 2.2 If A = and B=(-2 2.2.2 Use Cramer's rule to determine the present ages of John and Mary (4 marks) QUESTION 2 (14 MARKS) ^-(3) » -5), write down, if possible, the product AB. John is twice as old as Mary. Five years ago, John was three times as old as Mary. Let John's present age be x and Mary's present age be y. 2.2.1 Write down the two equations that represent the given information in their simplest forms. (4 marks) (6 marks) 2.1 2.2 If A = and B=(-2 2.2.2 Use Cramer's rule to determine the present ages of John and Mary (4 marks)

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21 22 221 222 A 1 B 2 5 3 AB 3 X 2 5 x 24 five year ago ... View the full answer