Foundation Plus
24th October 1977
- 1Expanding and Factorising2 marks
Expand and simplify 2(3x - 6).
- 2Repeated Percentage Change3 marks
A town's population is 9000 and grows by 6% each year. Work out the population after 5 years, to the nearest whole number.
- 3Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 2. The smaller has an area of 3 cm^2. Work out the area of the larger.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.15. It is thrown 500 times. How many heads would you expect?
- 5Scatter Graphs3 marks
A line of best fit on a scatter graph has equation y = 8x + 17. Use it to estimate y when x = 6.
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