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Rates

1. Utilize standard measures of rate, such as calculating: • hourly wages • currency exchange rates • rates of flow • fuel efficiency. 2. Use additional measures of rate, including calculations for: • pressure • density • population density. The necessary formulas will be provided in the question. 3. Address problems related to average speed, requiring knowledge of the speed/distance/time formula. For example, if a cyclist covers 45 km in 3 hours and 45 minutes, determine their average speed. Notation examples include m/s (metres per second) and g/cm³ (grams per cubic centimetre).

1

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10

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7

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46 min

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CambridgeIGCSEMathematicsCore Number

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Rates outcomes1 objectives
  • 1. Utilize standard measures of rate, such as calculating: • hourly wages • currency exchange rates • rates of flow • fuel efficiency. 2. Use additional measures of rate, including calculations for: • pressure • density • population density. The necessary formulas will be provided in the question. 3. Address problems related to average speed, requiring knowledge of the speed/distance/time formula. For example, if a cyclist covers 45 km in 3 hours and 45 minutes, determine their average speed. Notation examples include m/s (metres per second) and g/cm³ (grams per cubic centimetre).

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