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GCSE Higher Revision Starters 3. Ben drinks of a litre of milk. Sarah drinks 3 / 7 of what is left. What fraction is left after both Ben and Sarah have.

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Presentation on theme: "GCSE Higher Revision Starters 3. Ben drinks of a litre of milk. Sarah drinks 3 / 7 of what is left. What fraction is left after both Ben and Sarah have."— Presentation transcript:

1 GCSE Higher Revision Starters 3

2 Ben drinks of a litre of milk. Sarah drinks 3 / 7 of what is left. What fraction is left after both Ben and Sarah have had a drink? 4 / 21 GRADE D/C

3 3, 5, 7, 9, … 2n+1 6, 13, 20, 27, … GRADE C 5n – 2n Find the nth term of, … 4, 9, 14, 19, … 7n , 22, 20, 18, ….

4 A cup holds 250 ml, rounded to the nearest 10ml. A) What is the lower bound of the amount of coffee that can fit in the cup? B) The coffee machine dispenses 150 cups in a day. What is the maximum amount of coffee, in litres, that could be dispensed? GRADE A A)245ml B) 150 x 255ml= 38250ml so litres

5 Factorise the following 5a (a+7) 24y³ + 21y²3y²(8y + 7) 10ab³ - 36a²b²2ab²(5b – 18a) x² + 10x + 16(x + 2)(x + 8) GRADE C/B x² - 11x + 30(x - 5)(x - 6)


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