Mr M's Edexcel GCSE Mathematics 1MA0 Higher Tier Paper 2 Answers June 2014

Mr M's Edexcel GCSE Mathematics 1MA0 Higher Tier Paper 2 Answers June 2014


1. Midpoint

(4, 5.5) (2 marks)


2. Scatter graph

a) Plot 2 points (1 mark)

b) As the average temperature increases the unit of gas used decreases (negative correlation will be accepted) (1 mark)

c) 6 (approx.) (2 marks)


3. Using a calculator

$\frac{289}{140}$ or 2.064285714 (2 marks)


4. Circumference

28.3 (2 marks)


5. Translation

Translation by $\displaystyle \binom{5}{-3}$ (2 marks)


6. Driving home

2.15 p.m. (3 marks)


7. Parallel lines

54 degrees because angles at a point on a straight line add up to 180 degrees and alternate angles are equal or corresponding angles are equal (depending on which angles you found) (3 marks)


8. Survey

a) 0.29 (2 marks)

b) 195 (2 marks)

c) You may get different age groups at different times of the day and 10 is a very small sample size (2 marks)


9. Trapezium

$\frac{17}{3}$ (4 marks)


10. Indices

a) $p^6$ (1 mark)

b) $t^5$ (1 mark)

c) 6 (1 mark)

d) 4 (1 mark)


11. Driveway

£186.20 (5 marks)


12. Arithmetic sequence

a) $5n -1$ (2 marks)

b) $6n-2n^2$ (1 mark)


13. Inequalities

a) -4, -3, -2, -1, 0 (2 marks)

b) x > 4.5 (2 marks)


14. Party

£25.80 (5 marks)


15. Turbines

a) 7.5 (3 marks)

b) 217 degrees (4 marks)


16. Standard form

$1.875 \times 10^8$ (2 marks)


17. Similar shapes

a) 7.5 (2 marks)

b) 8 (2 marks)


18. Katie

a) £209.70 (3 marks)

b) Pay increase £25.50. ticket increase £25, she is 50p per week better off (3 marks)


19. 3D coordinates

$(2, \frac{4}{3}, 1)$ (2 marks)


20. Mean science marks

75.5 (3 marks)


21. Algebra

a) $y^2-7y+10$ (2 marks)

b) Proof (3 marks)


22. Biased coin

Yes she is correct (the probability is 0.064) (3 marks)


23. Stratified sample

a) A sample that is taken a particular part of the population rather than the whole (1 mark)

b) 26 (2 marks)


24. Inverse proportion

8 (3 marks)


25. Hemisphere and cone

302 (3 marks)


26. Quadratic simultaneous equations

x = 6 and y = 0

x = -3.6 and y = -4.8 (5 marks)


27. Parallelogram

43.9 (5 marks)

Thanks a lot!

How did you get that answer for the party? and what is your prediction for the grade boundaries this year? :/

woah, that was quick... thanks

Mr M's Edexcel GCSE Mathematics 1MA0 Higher Tier Paper 2 Answers June 2014


11. Driveway

£186.20 (5 marks)


22. Biased coin

Yes she is correct (the probability is 0.064) (3 marks)

-for q11 i used the write method but didnt notic it was 6cm, what mark would i get ?/

and for q22, i dont know why but i multiplied 0.064 by 2 to get 1.28 and said she is correct, could i still get 1 mark for writing 0.064 ??

Thank you so much, I can't really remember what I put for the driveway question but if I did put that he needed 6 bags instead of 7 because I rounded it down yet did everything else right, how many marks would I lose? Thanks again!