I know there has been 29 questions in this paper, so i am asking you to help me finish this. That's all I got so far
OK, So i was reviewing the
official thread and I would like other people to have the chance to see a better designed unofficial markscheme for the AQA Maths - Unit 1 (Higher) 2017 paper and there it is...
*NOTE* - I am not sure of the question numbers, but the order of the questions is pretty much correct. Please do reply if you have any comments or if you want to add or correct the markscheme
Question 1: Simplify 2^3 x 2^5 Answer:
2^8Question 2: Congruent trianglesAnswer: ASA (Angle-Side-Angle)
Question 3: Which of the given sequences is a geometric sequence?Answer: third answer -
x,12,54,x,x (can't fully remember)
Question 4: The ratio of a:b is 3:4; How would you represent b in terms of a?Answer: b is 3/4 of a (fourth answer)
Question 5: Factorise and simplify 36Answer: 2^2 x 3^2
Reason:
36
/ \
/ \
12 3
/ \
4 3
/ \
2 2
Question 6(a): What is the gradient of the line between the points (-2,-5) and (-4,-9)?Answer: The gradient is 2.
Reason:
-5 - (-9) = -5 + 9 = 4 = 2
-2 - (-4) = -2 + 4 = 2
Question 6(b): Is the line going through the point (601,-301)?Answer: Yes.
Question 7: Is reflection the only single transformation that can be used to make rectangle A fit rectangle B?Answer: No, translation can also be used.
Question 8: You are given this equation: 8x km/h = 5y mph. Express y in terms of x.Answer: y = 1.6x
Question 9: Write six million five thousand and two hundred in standard form.Answer: 6.0052 x 10^6
Question 10: What is the cheapest way to buy 8 bottles? You may split it between the three shops.Shop A: Buy 1; Get 2 for half the price
Shop B: Buy 2; Get 3 for half the price
Shop C: Get 30% off for each bottle.
The Initial price is the same between the shop and is up to your decision (NOT STATED IN THE QUESTION)
Answer: 6 bottles from shop A (2 x 3 bottles) and 2 bottles from shop C
Question 11: A circle has been fitted to a square with the area of 64cm^2; What is the area of the circle in terms of pi?Answer: 16pi
Reason:
area of 64cm^2 means the square has sides of 8 cm - the diameter of the circle.
Area of circle - pi x r^2 = pi x 4^2 = pi x 16 = 16pi
Question 12: Vectors (what was the question?)Answer: Second option (what was it?)
Question 13: Solve the simultaneous equation: (2x+y=18) and (x-y=6).Answer: x=8, y=2
Reason:
2x+y=18
2x-2y=12 (double this)
then substract the second from the first equation.
3y = 6 therefore y=2
Apply the y in any equation:
2x + 2 = 18
2x = 16
x = 8
Question 14: Cumulative frequency - what was the minimum marks for the top 20%?Answer: 53 marks
Question 15: Acceleration (what was it?)Answer: 6 seconds
Question 16: Distance (what was it?) Answer: 300m
Question 17(a): True / False question (remind me please?)Answer: False, False, True
Question 17(b): True / False question (remind me please?)Answer: True, True, False
Question 18: What is the diameter of the circle x^2 + y^2 = 64?Answer: 16
Question 19: Calculate the tangent to the circle equation in the form of y = mx + cAnswer: y= 1/4 x + 4 & 1/4
Question 20: What will be the total price for the tickets?Answer: £94.64
Reason:
price before any fees: £80
add 10% booking fee: £80 + £8 = £88
add another 3%: £88 x 1.03 = £90.64
Question 21: How many people are there in the office?Answer: 288
Reason:
m = 2f (there are twice more female then male)
1/4 female wear glasses; 3/8 male wear glasses.
there are x people who wear glasses.
*forgot what i did then sorry...*
Question 22: What is the volume of the water in terms of pi?Answer: 117pi
Question 23: Simplify this (sin and tan question)Answer: ( root(6) - root(3) ) / 12