Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
26th March 2008
- 1Bounds3 marks
A rectangle is 22 cm by 5 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 2Rearranging Harder Formulae3 marks
Make x the subject of 6x + 7 = y(x + 7).
- 3Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 3, y = 72. Work out y when x = 6.
- 4Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = b and vector OB = q. P is the point dividing AB in the ratio 3 : 1. Write vector OP in terms of b and q.
- 5Probability Equation Questions3 marks
The probability of winning a game is 4/5. A player expects 36 wins. How many games did they play?
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