Foundation Plus
15th January 1985
- 1Expanding and Factorising2 marks
Expand and simplify 2(6x + 1).
- 2Compound Interest and Depreciation3 marks
£3400 is invested at 3% compound interest per year. Work out the value after 4 years, to the nearest penny.
- 3Pythagoras2 marks
A right-angled triangle has a hypotenuse of 15 cm and one shorter side of 9 cm. Work out the other shorter side.
- 4Probability Trees3 marks
A bag holds 5 red and 3 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 5Scatter Graphs3 marks
A line of best fit on a scatter graph has equation y = 3x + 5. Use it to estimate y when x = 6.
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