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# Edexcel D1 - 17th June, 2016 [Exam discussion] watch

1. (Original post by Raaaas)
would you get it wrong if you wrote 2x +3y? and what was the answer to the very last question
It should be good
2. (Original post by vishva97)
Thats exactly what i did
I did the same mistake
Hope we get the error carried forward marks
3. Just worked out I need a total of 0 ums in this paper. to still get my two a* in maths and f maths..why did I even bother showing up
4. it's P= 1.5x + y and V was (15,1)

Therefore cost was 515
5. (Original post by mathsmann)
what were your values for w,x,y,z i got 12 for w ,how many marks would i get for the gantt chart if w is wrong? and anyone know what marks were for each part of question 7 ??
You would get 1 mark for the method
6. (Original post by eric25)
it's P= 1.5x + y and V was (15,1)

Therefore cost was 515
Its x+1.5y
7. y is 50% bigger therefore y=3/2x, its not x which is 50% bigger
8. anyone else do all the past papers and still drop like 10+ marks smh
9. (Original post by eric25)
it's P= 1.5x + y and V was (15,1)

Therefore cost was 515
naa dude x+1.5y and £480
10. I got 5 workers for the lower bound from my cascade diagram and I scheduled with 3 workers
11. (Original post by eric25)
it's P= 1.5x + y and V was (15,1)

Therefore cost was 515
No

P = 1.5y + x
12. So how hard was that D1 in all seriousness? I found it much harder - certainly time wise - than practice exams.
13. when x=1 y is 1.5 therefore x has to be 3/2 to be equal to y
14. (Original post by eric25)
y is 50% bigger therefore y=3/2x, its not x which is 50% bigger
I got that as well tbh ... don't know whether it's right or wrong but that was my logic when reading the question.
15. (Original post by eric25)
y is 50% bigger therefore y=3/2x, its not x which is 50% bigger
Yes, y is 50% bigger

Saying 1.5x+y is the same as saying that x is bigger than y. Just look at the coefficient of both x and y. 1.5>1 and as you said before y is 50% bigger, therefore it should be x+1.5y
16. (Original post by skeptical_john)
So how hard was that D1 in all seriousness? I found it much harder - certainly time wise - than practice exams.
It was just as hard as last years I think and last year was 58 for an A but to be honest I wouldn't be surprised if an A was between 58-62
17. Has anyone done the model answers ?
18. (Original post by eric25)
when x=1 y is 1.5 therefore x has to be 3/2 to be equal to y
That's not correct logic.

Plug in values if you don't believe me.

Let's say a standard container holds 1 unit of storage. Therefore a deluxe container holds 1.5 units, yes? (since deluxe is 150% of standard)

Let's say we bought 4 standard containers and 7 deluxe containers.

C = x + 1.5y

C = 4 + 1.5(7) = 14.5 units

(you know this is correct because you can work it out yourself doing 4 * 1 + 7 * 1.5 = 14.5)
19. (Original post by skeptical_john)
So how hard was that D1 in all seriousness? I found it much harder - certainly time wise - than practice exams.
Standard difficulty, it could have been worse. Hoping for a similar grade boundary as last year although I wouldn't be surprised if 59-60 is an A
20. It's 1.5x + y

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