1. A laptop worth $4200 depreciates by 18% p.a. on a reducing-balance basis. What is its value after 3 years, to the nearest cent?
Reducing-balance depreciation gives V = 4200(0.82)3 = 2315.7456, so the value is $2315.75 to the nearest cent.
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This public preview page identifies the planned Year 12 QCE Essential Mathematics demo route and links it to curriculum coverage while the reviewed sample question set is being completed.
The planned public sample is for Year 12 QCE Essential Mathematics practice and will open after the demo questions are reviewed.
Practice practical number, finance, measurement, rates, data, probability, and applied modelling.
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Reducing-balance depreciation gives V = 4200(0.82)3 = 2315.7456, so the value is $2315.75 to the nearest cent.
B₁ = 1.006 x 12000 - 420 = 11652. Then B₂ = 1.006 x 11652 - 420 = 11301.912, so B₂ is $11,301.91.
The actual dimensions are 34 m by 22.5 m, so the area is 765 m2. At $18 per square metre, the cost is 765 x 18 = $13,770.
Add the defective branches: 0.55 x 0.04 + 0.45 x 0.07 = 0.022 + 0.0315 = 0.0535.
A minimum spanning network connects all required points without a loop. Add the selected edge lengths: 6 + 8 + 5 + 9 + 7 = 35 m.
The usage is 1.4 x 92 = 128.8 kL. The usage charge is 128.8 x $2.18 = $280.78 to the nearest cent. The total bill is $83 + $280.78 = $363.78.
QCE Year 12 Essential Mathematics practice should make finance, measurement, rates, data, probability, and practical modelling feel structured rather than guessable. These examples preview that style before the no-login Essential Mathematics demo.
Not yet. The Year 12 QCE Essential Mathematics demo route is public, but the interactive sample questions will open after the reviewed public set is ready.
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This demo is linked with the QCE Year 11-12 Mathematics curriculum coverage page, where parents can compare the broader topic and pathway structure used for Skill Align practice.