# GCSE Maths UNIT 2 AQA + UNOFFICIAL MARK SCHEME 2016

Watch**Hello everyone.**

Hope the exam went well for you.

I'm 100000% confident the answers I got are correct, hence I'm making this Unofficial Mark scheme.

Q.1) Factorise and solve the equation for x and

**the answer is 8**.

Q.2)There was a Nth term sequence going up by 2n each time.

On the diagram you were give n,2n,_,_

You had to work out the total value of the first 4 terms and The answer was

**135**.

Q.3)

a)Plotting for Train A

b)Plotting for Train B.

c)

**80mph**was the speed of train B.

Q.4)

Car B was cheaper.

Q.5)

7 blue discs.

Question 6)

Factorise to get:

**2x(3x+7)**

Q.7)

You had to list all the values that satisfied The Inequality and they were:

-3,-2,-1,0,1

Q.7)

b)Draw a line to represent the Inequality of 2< x >=10

You should have put a

**solid**dot at 10 and

**clear**one at 2.

Q.8)

John and Nick share money in ratio 5:2. They have a difference of £150

Work out how much in total they get.

Answer was

**£350**

Q.9)

a)Find Reciprocal of 0.2 and

**Answer is 5**.

b)What is 8.5^0 and

**Answer is 1**

c)Factorise 27^1/3 x 7^-2

Leave your answer in Fraction form.

Answer is

**3/49**

10) You had a graph and you had to state all the Inequalities for the shaded region.

They were:

**x+y < 7 and x >= 2 y > 1**

11) The question had something like this:

x-20 : x + 280 is meant to = 1/4 or something like that.

Basically you had to find a value for x that satisfied that and made it = 1/4.

**Answer was 120.**

12)a)Forgot

12)b)Forgot

**Please remind me of these questions... I know there were a few to do on surds.**

15)Simplify an expression and I'm not sure whether you had to leave it at

**2x-1/2x+5**or

**-1/5 (CORRECT ME)**

16)You had to find its identity something like that and

**a=6**

**b=9**

17)You had some Fractions and you had to turn it into a Quadratic then solve it, The answers were

**x=7 or x=-4**

__I've forgotten some of the questions. If you tell me them I shall remember the answers. Have any disagreements or thoughts? Leave a comment below.__
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#2

(Original post by

Hello everyone.

Hope the exam went well for you.

I'm 100000% confident the answers I got are correct, hence I'm making this Unofficial Mark scheme.

Question 1) Factorise and solve the equation for x and the answer is 8.

Question 2)There was a Nth term sequence going up by 2n each time.

On the diagram you were give n,2n,_,_

You had to work out the total value of 4 terms and The answer was 135.

Question 3)

a)Plotting for Train A

b)Plotting for Train B.

c)80mph

Question 4)

Car B was cheaper.

Question 5)

7 blue discs.

Question 6)

Factorise to get: 2x(3x+7)

Question 7)

You had to list all the values that satisfied The Inequality and they were:

-3,-2,-1,0,1

Question 7b)

Draw a line to represent the Inequality of 2 <x >=10

You should have put a solid dot at 10 and clear one at 2.

Question 8)

John and Nick share money in ratio 5:2. They have a difference of £150

Work out how much in total they get.

Answer was £350

Question 9a)

Find Reciprocal of 0.2 and Answer is 5.

Question 9b)

What is 8.5^0 and Answer is 1

9c)Factorise 27^1/3 x 7^-2

Leave your answer in Fraction for.

Answer is 3/49

10) You had a graph and you had to state all the Inequalities for the shaded region.

They were:

x+y <7 and y>1 and x >= 2

11) 120 (Forgot Question)

12)a)

12)b)

OMG I've forgot some questions. If you tell me them I shall remember the answers. Have any disagreements or thoughts? Leave a comment below.

I shall clean this up when I get home....

**Bulletzone**)Hello everyone.

Hope the exam went well for you.

I'm 100000% confident the answers I got are correct, hence I'm making this Unofficial Mark scheme.

Question 1) Factorise and solve the equation for x and the answer is 8.

Question 2)There was a Nth term sequence going up by 2n each time.

On the diagram you were give n,2n,_,_

You had to work out the total value of 4 terms and The answer was 135.

Question 3)

a)Plotting for Train A

b)Plotting for Train B.

c)80mph

Question 4)

Car B was cheaper.

Question 5)

7 blue discs.

Question 6)

Factorise to get: 2x(3x+7)

Question 7)

You had to list all the values that satisfied The Inequality and they were:

-3,-2,-1,0,1

Question 7b)

Draw a line to represent the Inequality of 2 <x >=10

You should have put a solid dot at 10 and clear one at 2.

Question 8)

John and Nick share money in ratio 5:2. They have a difference of £150

Work out how much in total they get.

Answer was £350

Question 9a)

Find Reciprocal of 0.2 and Answer is 5.

Question 9b)

What is 8.5^0 and Answer is 1

9c)Factorise 27^1/3 x 7^-2

Leave your answer in Fraction for.

Answer is 3/49

10) You had a graph and you had to state all the Inequalities for the shaded region.

They were:

x+y <7 and y>1 and x >= 2

11) 120 (Forgot Question)

12)a)

12)b)

OMG I've forgot some questions. If you tell me them I shall remember the answers. Have any disagreements or thoughts? Leave a comment below.

I shall clean this up when I get home....

The last question was solving a quadratic equation from the algebraic fractions, which I can't remember. I messed this up and made the wrong quadratic.

There was a question where we had to simplify an algebraic fraction (I think it had 2x on both the denominator and numerator).

If I remember anything else, I'll tell you.

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(Original post by

That was a solid paper... I've only got 25 so far (My A grade is out of the window for sure).

The last question was solving a quadratic equation from the algebraic fractions, which I can't remember. I messed this up and made the wrong quadratic.

There was a question where we had to simplify an algebraic fraction (I think it had 2x on both the denominator and numerator).

If I remember anything else, I'll tell you.

**Jamie Vardy**)That was a solid paper... I've only got 25 so far (My A grade is out of the window for sure).

The last question was solving a quadratic equation from the algebraic fractions, which I can't remember. I messed this up and made the wrong quadratic.

There was a question where we had to simplify an algebraic fraction (I think it had 2x on both the denominator and numerator).

If I remember anything else, I'll tell you.

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There was a number machine question which involved you using Simultaneous equations to solve a and b.

I have the answer but can't remember the question, If anyone can tell me I can add it it.

I have the answer but can't remember the question, If anyone can tell me I can add it it.

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#5

(Original post by

There was a number machine question which involved you using Simultaneous equations to solve a and b.

I have the answer but can't remember the question, If anyone can tell me I can add it it.

**Bulletzone**)There was a number machine question which involved you using Simultaneous equations to solve a and b.

I have the answer but can't remember the question, If anyone can tell me I can add it it.

a + b = 64

Something to do with those. I ****ed up the simultaneous equation!

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(Original post by

3a - 5 = b

a +b = 64

Something to do with those. I ****ed up the simultaneous equation!

**Jamie Vardy**)3a - 5 = b

a +b = 64

Something to do with those. I ****ed up the simultaneous equation!

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#7

(Original post by

3a - 5 = b

a + b = 64

Something to do with those. I ****ed up the simultaneous equation!

**Jamie Vardy**)3a - 5 = b

a + b = 64

Something to do with those. I ****ed up the simultaneous equation!

a + (3a - 5) = 64

4a - 5 = 64

4a = 69

a = 17.25

b = 46.75

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(Original post by

I didn't sit the paper (Just passing ) but if it wanted you to solve the above for a and b....

a + (3a - 5) = 64

4a - 5 = 64

4a = 69

a = 17.25

b = 46.75

**Lionheartat20**)I didn't sit the paper (Just passing ) but if it wanted you to solve the above for a and b....

a + (3a - 5) = 64

4a - 5 = 64

4a = 69

a = 17.25

b = 46.75

I know for a fact that the second part is not as Vardy stated.

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#9

**Bulletzone**)

There was a number machine question which involved you using Simultaneous equations to solve a and b.

I have the answer but can't remember the question, If anyone can tell me I can add it it.

a + b = 64

Something to do with those. I ****ed up the simultaneous equation!

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#10

**Bulletzone**)

There was a number machine question which involved you using Simultaneous equations to solve a and b.

I have the answer but can't remember the question, If anyone can tell me I can add it it.

input -> x3 -> -5 -> output

when input is a, output is b

a+b= 64

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(Original post by

i believe it was

input -> x3 -> -5 -> output

when input is a, output is b

a+b= 64

**slimehigh**)i believe it was

input -> x3 -> -5 -> output

when input is a, output is b

a+b= 64

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#12

(Original post by

Can't believe I've forgotten how I worked out my answers, but I know I didn't get the same answers. Perhaps I went wrong?

**Bulletzone**)Can't believe I've forgotten how I worked out my answers, but I know I didn't get the same answers. Perhaps I went wrong?

3a-5=b

3(a+b)-5=64

3(a+3a-5)-5=64

3a+9a-15-5=64

12a-20=64

12a=84

a=7

input 'a' into 3a-5=b :

7x3-5=b

21-5=b

b=16

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#13

(Original post by

i think i made a mistake in my previous comment, i meant that if the input is a+b, the output is 64. i might be wrong but this is how i did it in the exam:

3a-5=b

3(a+b)-5=64

3(a+3a-5)-5=64

3a+9a-15-5=64

12a-20=64

12a=84

a=7

input 'a' into 3a-5=b :

7x3-5=b

21-5=b

b=16

**slimehigh**)i think i made a mistake in my previous comment, i meant that if the input is a+b, the output is 64. i might be wrong but this is how i did it in the exam:

3a-5=b

3(a+b)-5=64

3(a+3a-5)-5=64

3a+9a-15-5=64

12a-20=64

12a=84

a=7

input 'a' into 3a-5=b :

7x3-5=b

21-5=b

b=16

I did the same

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**slimehigh**)

i think i made a mistake in my previous comment, i meant that if the input is a+b, the output is 64. i might be wrong but this is how i did it in the exam:

3a-5=b

3(a+b)-5=64

3(a+3a-5)-5=64

3a+9a-15-5=64

12a-20=64

12a=84

a=7

input 'a' into 3a-5=b :

7x3-5=b

21-5=b

b=16

You said a is 7 and b is 16 but 16 + 7 does not = 64....

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#15

"15)Simplify an expression and I'm not sure whether you had to leave it at 2x-1/2x+5 or -1/5"

2x-1/2x+5 does not equal -1/5 because you can't take 2x out of either top or bottom, it is not a factor.

2x-1/2x+5 is correct

2x-1/2x+5 does not equal -1/5 because you can't take 2x out of either top or bottom, it is not a factor.

2x-1/2x+5 is correct

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#16

(Original post by

That's wrong (I think) though because the original statement said a + b = 64

You said a is 7 and b is 16 but 16 + 7 does not = 64....

**Bulletzone**)That's wrong (I think) though because the original statement said a + b = 64

You said a is 7 and b is 16 but 16 + 7 does not = 64....

i thought the exam said that when the input is a+b the output is 64

16+7=23

23x3=69

69-5=64

but maybe i misread it lol

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(Original post by

oh, nevermind then

i thought the exam said that when the input is a+b the output is 64

16+7=23

23x3=69

69-5=64

but maybe i misread it lol

**slimehigh**)oh, nevermind then

i thought the exam said that when the input is a+b the output is 64

16+7=23

23x3=69

69-5=64

but maybe i misread it lol

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#19

**Bulletzone**)

That's wrong (I think) though because the original statement said a + b = 64

You said a is 7 and b is 16 but 16 + 7 does not = 64....

I am confident i got this question right but cant remember with accuracy my answer or the question.

I do remember something along the lines of 3(a+b)-5 but only vaguely.

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(Original post by

Good point.

I am confident i got this question right but cant remember with accuracy my answer or the question.

I do remember something along the lines of 3(a+b)-5 but only vaguely.

**bigoliver**)Good point.

I am confident i got this question right but cant remember with accuracy my answer or the question.

I do remember something along the lines of 3(a+b)-5 but only vaguely.

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