Foundation Plus
18th June 1990
- 1Expanding and Factorising2 marks
Expand and simplify 9(5x + 9).
- 2Repeated Percentage Change3 marks
A town's population is 31500 and grows by 4% each year. Work out the population after 3 years, to the nearest whole number.
- 3Pythagoras2 marks
A right-angled triangle has a hypotenuse of 10 cm and one shorter side of 8 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 = 2x + 7. Use it to estimate y when x = 7.
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