Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

15th December 2009

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Capture Recapture3 marks
60 beetles are marked and released. Later 40 are caught, of which 4 are marked. Estimate the population.
2
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7676... as a fraction in its simplest form.
3
Parallel and Perpendicular Lines3 marks
A line has equation y = 5x + 9. Work out the gradient of any line perpendicular to it.
4
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 4 : 5. Write y in terms of x.
5
Enlarging with Negative Scale Factors3 marks
The point (4, -2) is enlarged by scale factor -3 about the centre (-1, -1). Write down the coordinates of the image.

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