Growth and decay (AQA GCSE Maths): Quizzes

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Growth and decay
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What do growth and decay problems use to model real-world situations?

Repeated percentage changes

Which is an example of a growth process?

Cell division

Which is an example of a decay process?

Car depreciation

What is compound interest?

Interest on original + earned interest

What is the multiplier for a 20% increase?

1.21.2

What is the multiplier for an 8% decrease?

0.920.92

5000 cells increase by 20% daily. How many after 4 days?

10,36810,368 cells

A £15,000 car loses 8% value yearly. Value after 3 years?

£11,680.32

What does 'per annum' mean?

Per year

Which multiplier represents decay?

0.850.85

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