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# UNOFFICIAL MARKSCHEME Edexcel Maths Calculator paper 09/06/2016 Watch

1. (Original post by Disfuligee)
80.4 is correct see DrPeter's post
Dr Peter who?
2. (Original post by DrPeter)
The marks should have indicated there was more work to do. Never mind, hopefully everything else went well and Good Luck !!
Yeah i was thinking theres no way a 6 mark can be that easySilly me! Thanks again!
3. (Original post by Mahrez)
yes 7250 or something so it does
How'd you work it out? Scared to do my working on here incase I get roasted but here goes:

====
Paul buys a new car for \$(American computer, insert pounds)15,000

The magazine said new cars lose over half their value after 3 years. Is this true?

100-x% (X is the percentage depreciation after the first year, don't know value)

X% So X/100*15,000 = x* (asterik is for future notation)

100-x% (X is the percentage depreciation for the next years after the first, don't know value)

X% so X/100*x*(from previous answer) = 7392 <---- the answer I got.

Yes, the car lost over half its value as (15000/2 = 7500 so 7500-7392 = 108).
4. (Original post by Sullivan0)
Is 45% OK for number 2?
Yeah it should be
5. i got £42.39 for question 11

i think u got number 19 and 20 wrong
6. I got 80.5 for the last question >.<

"i think u got number 19 and 20 wrong"

I got this as well, not sure if it is right or wrong but I got the same as Disfuligee
7. (Original post by 9091student)
Dr Peter who?
This post

(Original post by DrPeter)
If I have the correct numbers,This is one way of doing last Q

Area = ( absinC)/2Sin-1 C

= 18x2/(7x8)= 40.00520088 degrees (DO NOT ROUND)

a^2 = b^2 + c^2 - 2 x b x c= 27.20955764 cm (DO NOT ROUND)

Cos A^-1= (b^2 + c^2 - a^2) / 2 x b x c

= 80.37550115

= 80.4 degrees
8. I got that!
9. when you were feeling sweet that you were able to do the last question but you realise that the answer is 80.8 not 40.0 -_-
10. Is there one for foundation? Please give me a link if there is
11. Hey guys i reckon ive got 105 overall,will that be a B do you think?Need it to go into the army so just want my mind putting to rest if you can please
12. (Original post by DOMAR34)
How'd you work it out? Scared to do my working on here incase I get roasted but here goes:

====
Paul buys a new car for \$(American computer, insert pounds)15,000

The magazine said new cars lose over half their value after 3 years. Is this true?

100-x% (X is the percentage depreciation after the first year, don't know value)

X% So X/100*15,000 = x* (asterik is for future notation)

100-x% (X is the percentage depreciation for the next years after the first, don't know value)

X% so X/100*x*(from previous answer) = 7392 <---- the answer I got.

Yes, the car lost over half its value as (15000/2 = 7500 so 7500-7392 = 108).

15000*0.77*0.82*0.82=7766.22

This is the correct answer so Paul is wrong
13. I did that as well Xx
14. Trial and improvement was 3.7
15. how many marks everyone think they got then???
16. (Original post by Abzzzz)
Trial and improvement was 3.7
It's 3.8... 😶
17. (Original post by haybe2k)
i got £42.39 for question 11

i think u got number 19 and 20 wrong
19 and 20 is definitely right
18. (Original post by Abzzzz)
Trial and improvement was 3.7
You mean 3.8
19. I didn't do a curve on the graph as it was up and down numbers if you get what I mean, rather than increasing. rip A grade I was really hoping for
20. (Original post by Abzzzz)
Trial and improvement was 3.7
It was 3.8 lololol

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