Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
24th April 1999
- 1Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 20 < x <= 25. The frequencies in order are 7, 11, 3, 16, 21. Write down the modal class.
- 2Standard Form2 marks
Work out (5 x 10^7) x (9 x 10^-5). Give your answer in standard form.
- 3Solving Simultaneous Equations Graphically3 marks
The lines y = -2x + 6 and y = 3x + 1 are drawn. Write down the coordinates of the point where they cross.
- 4Ratio2 marks
Red and blue raffle tickets are in the ratio 3 : 7. There are 21 red raffle tickets. How many raffle tickets are there altogether?
- 5Exact trig values1 mark
Write down the exact value of cos 45°.
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