Direct proportion

Mark scheme and answers · Total marks: 43

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Question 1 [1 mark]

6

Mark scheme
  • A [1] — cao 6

Accept algebraically equivalent correct forms.

Question 2 [1 mark]

6

Mark scheme
  • A [1] — cao 6

Accept algebraically equivalent correct forms.

Question 3 [1 mark]

12

Mark scheme
  • A [1] — cao 12

Accept algebraically equivalent correct forms.

Question 4 [1 mark]

15

Mark scheme
  • A [1] — cao 15

Accept algebraically equivalent correct forms.

Question 5 [1 mark]

£29.40

Mark scheme
  • A [1] — cao £29.40

Accept algebraically equivalent correct forms.

Question 6 [1 mark]

35

Mark scheme
  • A [1] — cao 35

Accept algebraically equivalent correct forms.

Question 7 [1 mark]

5

Mark scheme
  • A [1] — cao 5

Accept algebraically equivalent correct forms.

Question 8 [1 mark]

£7.50

Mark scheme
  • A [1] — cao £7.50

Accept algebraically equivalent correct forms.

Question 9 [1 mark]

12 N

Mark scheme
  • A [1] — cao 12 N

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Question 10 [1 mark]

250 miles

Mark scheme
  • A [1] — cao 250 miles

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Question 11 [1 mark]

45

Mark scheme
  • A [1] — cao 45

Accept algebraically equivalent correct forms.

Question 12 [1 mark]

25

Mark scheme
  • A [1] — cao 25

Accept algebraically equivalent correct forms.

Question 13 [1 mark]

50.24

Mark scheme
  • A [1] — cao 50.24

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Question 14 [1 mark]

45

Mark scheme
  • A [1] — cao 45

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Question 15 [2 marks]

8

Mark scheme
  • A [2] — cao 8

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Question 16 [2 marks]

78.53

Mark scheme
  • A [2] — cao 78.53

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Question 17 [2 marks]

12 nights

Mark scheme
  • A [2] — cao 12 nights

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Question 18 [2 marks]

£280.00

Mark scheme
  • A [2] — cao £280.00

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Question 19 [2 marks]

300 miles

Mark scheme
  • A [2] — cao 300 miles

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Question 20 [2 marks]

523.4 cm³

Mark scheme
  • A [2] — cao 523.4 cm³

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Question 21 [1 mark]

1080

Mark scheme
  • A [1] — cao 1080

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Question 22 [1 mark]

18

Mark scheme
  • A [1] — cao 18

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Question 23 [1 mark]

81

Mark scheme
  • A [1] — cao 81

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Question 24 [2 marks]

25

Mark scheme
  • A [2] — cao 25

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Question 25 [2 marks]

x = 5 or x = -5

Mark scheme
  • A [2] — cao x = 5 or x = -5

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Question 26 [2 marks]

98π

Mark scheme
  • A [2] — cao 98π

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Question 27 [2 marks]

1125 J

Mark scheme
  • A [2] — cao 1125 J

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Question 28 [2 marks]

£12.00

Mark scheme
  • A [2] — cao £12.00

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Question 29 [2 marks]

0.72 kWh

Mark scheme
  • A [2] — cao 0.72 kWh

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Question 30 [2 marks]

£48.60

Mark scheme
  • A [2] — cao £48.60

Accept algebraically equivalent correct forms.