Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
13th April 2014
- 1Changing the Subject of a Formula3 marks
Make x the subject of y = 7x^2 - 11.
- 2Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 4 : 7. Write y in terms of x.
- 3Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 5. The smaller has an area of 6 cm^2. Work out the area of the larger.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.2. It is thrown 250 times. How many heads would you expect?
- 5Averages from Frequency Tables3 marks
In a survey 5 households own 1 car, 4 own 2 cars and 8 own 3 cars. Work out the mean number of cars, to 2 decimal places.
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