Hi I'm going to start and unofficial markscheme so add your answersReps are not necessary but would be appreciated It would be really useful if you could remember the question numbers 1. Order numbers correctly and include a key b) 9/20=0.45 2a. 5a*2b*3c =30abcb. Factorise fully 3y +6 =3(y+2) c. Expand x(x-3)=x^2-3x 3.x=9.25 4. Smallest packet was best value for money because it was cheapest per bag of crisps 5. 4 times as many red than green: There were 0.4 blue and 0.15 yellow.0.4+0.15+4x+x=10.55+5x=15x=0.45x=0.094x=0.36Green- 0.09 Red- 0.36 6a. 20.3 b. 68.04kg c. 2.61m 7. 3.8 8a. 4:3 b. 480 pixels 9.x= 124 degrees 10. 7.92 11.£42.29 12. x=144 degrees 13.-2 -1 0 1 2-1 3 1 -1 3Draw curve 14. 3 Bars 15. No, because 7766.22 was greater than 7500 pounds 16. 128g b.11g 17. 30.1 18. 10a^5b^4 b. y= 5p^2-x 19.11 males 20. x= 0.29 or x= -2.29 21. 29.25 22. F.d- 1.6, 3.2, 2.4, 1.8, 0.3 23.28.9 24a. -1/3x+4 b. 2x/(x+1)(x-1) 25. 80.4
I think: Q2a was 1mark Q2b 1mark Q2c 1mark or 2 mark? Q3 I believe was 3 but could be 4 Q4 was 4mark Q5 was 2mark(?) Q6 a b and c I think were 2 each so 6? Q7 4or5marks Q8 a and b both equated to 4 marks? Q13 a was 3 marks I believe b was 2 marks Q14 at least 4 marks Q15 5marks(?) Q16 a was 1 mark b was 2 marks Q18 a 1 mark b 3marks Q19 was 2 marks Q24 a 2 marks b was 3 marks Q25 5 marks?
As you can see I am unsure about many so PLEASE correct me and fill the blanks!!!!!!!!!!!!!!! Thanks
This is true but a fraction is correct too because when we are given probability questions with tree diagrams they are usually in the form of fractions
I got the same as you did... using the same method but people at my school got a range from 40.0, 45 47,5 and going all the way up to 80.0 and 80.2... Don't know what the right answer was though
I got the same as you did... using the same method but people at my school got a range from 40.0, 45 47,5 and going all the way up to 80.0 and 80.2... Don't know what the right answer was though
If they want is to 1 dp then you have to test halfway between the two 1dp values (so 3.75) to know whether 3.8 is closer or 3.7 so you would have lost at least 1 mark
Wait a sec, x^3 - 5x = 34
3.7^3 - 5(3.7) = 32.153 34 - 32.153 = 1.847 So 3.7 is 1.847 away.
3.8^3 - 5(3.8) = 35.872 35.872 - 34 = 1.872 So 3.8 is 1.872 away.
This shows 3.8 being 0.025 further away than 3.7. 3.7 is closer. These are cubed numbers so even though you could round up from 3.75, the number gap changes as the numbers get bigger, so you count just assume to round up. They only care about 1d.p. numbers, using 3.75 doesnt matter. You have to find which 1d.p. is closer, and its 3.7.
I think: Q2a was 1mark Q2b 1mark Q2c 1mark or 2 mark? Q3 I believe was 3 but could be 4 Q4 was 4mark Q5 was 2mark(?) Q6 a b and c I think were 2 each so 6? Q7 4or5marks Q8 a and b both equated to 4 marks? Q13 a was 3 marks I believe b was 2 marks Q14 at least 4 marks Q15 5marks(?) Q16 a was 1 mark b was 2 marks Q18 a 1 mark b 3marks Q19 was 2 marks Q24 a 2 marks b was 3 marks Q25 5 marks?
As you can see I am unsure about many so PLEASE correct me and fill the blanks!!!!!!!!!!!!!!! Thanks