Zadanie 10a
Find the balance on 1 January 2030, to the nearest dollar.
Interest and depreciation models
Build and evaluate repeated percentage-change models, accounting for compounding periods and inflation where needed.
Tę umiejętność sprawdza 8 zadań wzorowanych na arkuszach IB z lat 2025–2026.
Zadania sprawdzające tę umiejętność: 8 Otwórz w wyszukiwarce z filtrami
Zadanie 10b
Show that the balance first exceeds the original USD 31,000 price during 2035.
Zadanie 10c
The machine price depreciates at a constant annual percentage rate r. After one year its price is USD 29,140. Find r.
Zadanie 10d
The machine price depreciates at a constant annual percentage rate r. After one year its price is USD 29,140. For any real number t of years after 1 January 2026, model the price by 31000(1 − r/100)t. The club buys as soon as its credited account balance can…
Zadanie 2a
Write down r.
Zadanie 2c
Hence or otherwise, find the balance after one year, rounded to the nearest dollar.
Zadanie 4a
Find the value of the equipment after nine years, to two decimal places.
Zadanie 4b
How many complete months must pass before the purchasing power of the reserve first exceeds €36 000?