Daily Practice · Higher

Daily Practice - Higher

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

3rd October 2005

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Changing the Subject of a Formula3 marks
Make x the subject of y = 2x^2 - 9.
2
Repeated Percentage Change3 marks
A price rises by 25% and then falls by 20%. Work out the overall percentage change, to 2 decimal places.
3
Circle Theorems2 marks
ABCD is a cyclic quadrilateral. Angle ABC is 109°. Work out angle ADC.
4
Probability Trees3 marks
A bag holds 8 red and 4 blue counters. Two are taken without replacement. Work out the probability both are red.
5
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 168 values. What cumulative frequency do you read across from to estimate the lower quartile?

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