Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
21st June 2011
- 1Surds2 marks
Write sqrt(72) in the form a sqrt(b), where b is as small as possible.
- 2Simultaneous Equations3 marks
5 teas and 3 cakes cost £19.00. 3 teas and 4 cakes cost £19.10. Find the price of a tea.
- 3Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 8. Write y in terms of x.
- 4SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has a hypotenuse of 12 cm and an angle of 28°. Work out the side adjacent to that angle, to 1 decimal place.
- 5Probability Trees3 marks
5 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
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