Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
8th August 2004
- 1Bounds3 marks
x = 136 and y = 68, each correct to the nearest whole number. Work out the upper bound of x - y.
- 2Rearranging Harder Formulae3 marks
Make x the subject of 6x + 6 = y(x + 6).
- 3Velocity Time Graphs2 marks
A train slows steadily from 22 m/s to rest in 10 seconds. Work out its deceleration.
- 4Finding the Area of Any Triangle3 marks
A triangle has sides of 15 cm and 10 cm and an area of 64.95 cm^2. Work out the acute angle between those two sides, to the nearest degree.
- 5Probability Equation Questions3 marks
A bag holds 10 counters, r of them red. Two are taken without replacement and P(both red) = 2/9. Work out r.
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