Foundation Plus
7th September 1954
- 1Expanding and Factorising2 marks
Expand and simplify 7(7x + 9).
- 2Compound Interest and Depreciation3 marks
£3900 is invested at 3% compound interest per year. Work out the value after 3 years, to the nearest penny.
- 3Pythagoras2 marks
A right-angled triangle has a hypotenuse of 17 cm and one shorter side of 15 cm. Work out the other shorter side.
- 4Probability Trees3 marks
A bag holds 3 red and 7 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 = 9x + 36. Use it to estimate y when x = 8.
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