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

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1. (Original post by sarahahowson)
Yes please can anyone make a foundation paper answer and mark scheme nobody has made one yet ðŸ™‚
2. (Original post by rayestar)
I just wanna scare all those teenagers
Spoiler:
Show
haha jk, I couldn't find a better avatar lol
3. (Original post by Purpleunicorn197)
Reps are not necessary but would be appreciated

Sorry for the hold up with the questions
1. Order numbers correctly and include a key (Stem and leaf) (3 marks)
b) 9/20=
0.45 (2 marks)
2a. 5a*2b*3c =
30abc (1 mark)
b. Factorise fully 3y +6 =
3(y+2) (1 mark)
c. Expand x(x-3)=
x^2-3x (1 mark)
3. Perimeter of a rectangle with side lengths x and x+4 is 45
x+x+x+4+x+4= 4x+8
4x+8=45
4x=37
x=9.25 (3 marks)
4. Smallest packet was best value for money because it was cheapest per bag of crisps (4 marks)
5. 4 times as many red than green: There were 0.4 blue and 0.15 yellow.
0.4+0.15+4x+x=1
0.55+5x=1
5x=0.45
x=0.09
4x=0.36
Green- 0.09 Red- 0.36 (3 marks)
6a. Body mass index= m/h^2
Mass= 50kg
Height= 1.57m
20.3 (2 marks)
b. What mass will result in a BMI of 21 with a height of 1.8m
68.04kg (2 marks)
c. Tom's skis can be a maximum of 145% of his height what is their max. tenght (Tom is 1.8m)
2.61m (3 marks)
7. Trial and error. x^3-5x=34 with a number between 3 and 4
x^3-5x=34
3.7 gives you 32.153 which is too small
3.8 gives you 35.872 which is too big
So you go in the middle at 3.75 and if it is too big then its you go with the smaller option and viceversa so 3.75 gives you 33.984375 which is too small so you go for the larger option of 3.8
3.8 (4 marks)
8a. Photographs with of width 720 pixels and a height of 540 pixels what is the ratio width:height in its simplest form?
4:3 (2 marks)
b. The person now wants the ratio to be 2:3, without changing the width of the picture, what is the new height?
480 pixels (2 marks)
9.x= 124 degrees (4 marks)
10. Mean of grouper freq. table 396(freq.*midpoint total)/50 (freq. total)
7.92 (4 marks)
11. Colin's drive to work
Â£42.29 (5 marks)
12. The middle angle of a pentagon
x=144 degrees (4 marks)
13.
-2 -1 0 1 2
-1 3 1 -1 3 (2 marks)
Draw curve (2 marks)
14. steel bar with length of 120cm and a cross sectional area of 72cm^2 and a density of 8g/cm^3. A trolley can carry 250kg so how many bars can it carry?
3 Bars (5 marks)
15. Pauls buys a car worth 15,000 pounds and the value depreciates by 23% in the first year and 18% after the first year. Has Paul's car lost half of its value in theree years?
No, because 7766.22 was greater than 7500 pounds (4 marks)
16. Median on cumulative freq. graph
128g (1 mark)
b. Use graph to find interquartile range
11g (2 marks)
17. Triangle with sides 15.6cm (opp), 18(hyp). Angle is split into 2, 30 degrees and x degrees. the whole angle is 60.1 so
x=30.1 (4 marks)
18. 10a^5b^4 (2 marks)
b. y= 5p^2-x (3 marks)
19. 51 out of the 234 were maths in yr 12 so 50 * 51/234
11 males (2 marks)
20. 3x^2 + 6x -2
x= 0.29 or x= -2.29 (3 marks)
21. v=14 to 2 s.f u= 8.7 to 2 s.f
What is the upper bound of I when I= 5(v-u)
29.25 (3 marks)
22. Histogram -F.d- 1.6, 3.2, 2.4, 1.8, 0.3 (3 marks)
23. Perimeter of the shaded part of the sector.
Measurements were 4+4+5/2pi+25/6pi
28.9 (3 marks)
24a. Simplify (3-x)/3x^2-5x-12
-1/3x+4 (2 marks)
b. Write are one fraction in its simplest for (x/x-1)- (x/x+1)
2x/(x+1)(x-1) (3 marks)
25. Triangle with side lengths 7 and 8 finding the top angle using 1/2absinC , sine rule and cosine rule
80.4 (6 marks)
was an angle given with this question, as well as the two sides?
4. new to this so wasnt sure about the reply? was there an angle given with the last question as well as the two sides?
5. (Original post by dennigb)
was an angle given with this question, as well as the two sides?
if you are refering to the last question- no
6. (Original post by dennigb)
was an angle given with this question, as well as the two sides?
If you are talking about the last question, no there was no angle. You got the angle by rearranging the Area equation .

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
7. thanks for clarification on q25.

when I realised 40 was the wrong angle I was using 108 insteead of 112 for 2ab so got the wrong answser (i got around 69 instead of 80) but got it now thanks.
9. I just realized I forgot to put a ****ing key in my ****ing stem leaf. **** YOU **** **** ****
10. I just realised I forgot to put a ****ing key in my ****ing stem leaf. **** YOU **** **** ****
11. (Original post by Redcoats)
What do you think you'll get?
12. (Original post by DrPeter)
If you are talking about the last question, no there was no angle. You got the angle by rearranging the Area equation .

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
How many marks would i get if i did round those answers. I still did everything else correct.
13. Guys for Collins car question I forgot to add on the initial car park cost how many marks would I get I'm thinking maybe 3 due to having correct methods but lost 2 for the answer
14. Highest grade boundary on a foundation paper was in November 2009 which was 156.
June 2009 - 149
June 2010 - 153 and November was 147
June 2011 - 131 and November was 129
June 2012 - 130, November 139 and March 153
June 2013 - 143, November 151, March 147
June 2014 - 141, November 148
June 2015 - 139, November 144
June 2016?????

Hope this helps us...
15. Also for the rearranging the formula
It was y=5p^-x
Isn't it permissible to simplify to y=p-xÃ·5p because technically that is the same
16. What if I used 3.142 as pie?
17. For the trial and improvement, the answer is 3.7, because the value that 3.7 gives is closer to 35, cant remember the figure, but the figures are very close
18. (Original post by Global - fallacy)
Guys for Collins car question I forgot to add on the initial car park cost how many marks would I get I'm thinking maybe 3 due to having correct methods but lost 2 for the answer
Max 2 marks
19. I have a question. It's okay if I used 3.142 as pie for the last question? I got close to 80.4. I think I got 81.1 as my answer to 1dp. Would I still get some marks. ( I showed the working out)
20. (Original post by James2021)
How many marks would i get if i did round those answers. I still did everything else correct.
I believe you would get Method Marks and lose out on the Accuracy Mark(s) hence lose only 1 (or maybe 2) marks if they are harsh.

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Updated: August 26, 2016
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