Mathematics 0580 · IGCSE · Exponential growth and decay

Exponential growth and decay — practice question

The world’s population increases exponentially by 1.1% each year.
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Determine how many years are needed for the population to rise from 7 billion to 7.31 billion. State your answer correct to the nearest whole number.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate compound growth equation” …

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