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5 marksSubstitution in Algebraic Expressions

CSEC Mathematics · January 2004 · Paper 2 · Question 2(b)(ii)

The temperature, C, in degrees Celsius, is calculated using the formula C = 5/9 (F-32), where F is the temperature in degrees Fahrenheit.

The temperature in London is 15°C. Use the formula derived in (i) above to convert this temperature to degrees Fahrenheit.

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Other parts of this question

  1. 2(a)(i)Calculate the value of 4p - qr.[3 marks]
  2. 2(a)(ii)Calculate the value of 2r².[3 marks]
  3. 2(b)(i)Make F the subject of the formula.[5 marks]
  4. 2(c)Solve the following pair of simultaneous equations: 2x + 3y = 18; x + 5y = 23.[4 marks]

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