Foundation Plus
23rd January 1979
- 1Forming and Solving Equations3 marks
The angles in a triangle are 4x°, 2x° and (x + 19)°. Form an equation and work out x.
- 2Compound Interest and Depreciation3 marks
£3200 is invested at 5% compound interest per year. Work out the value after 5 years, to the nearest penny.
- 3SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has a hypotenuse of 15 cm and an angle of 59°. Work out the side adjacent to that angle, to 1 decimal place.
- 4Probability Trees3 marks
A bag holds 5 red and 7 blue counters. Two are taken without replacement. Work out the probability both are red.
- 5Box Plots2 marks
A box plot has a minimum of 18 and a maximum of 65. Work out the range.
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