Mathematics 0580 · IGCSE · Exponential growth and decay

Exponential growth and decay — practice question

(a(i))[2]

Show that Eduardo has $\$721$ at the end of 6 years, correct to the nearest dollar.

(a(ii))[4]

Determine the yearly compound interest rate.

(b)[2]

Find the scooter's value after 3 years.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The required calculation is $640\times1.02^{6}$.” …