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Submitted By amangill

Words 1336

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Words 1336

Pages 6

15x + 6y = 7419x = 962 x 4 – 3y = 11 | x = 4, y = -1 | 4 | M1 for a correct process to eliminate either x or y (condone one arithmetic error)A1 for either x = 4 or y = -1M1 (dep on 1st M1) for correct substitution of their found variableA1 for both x = 4 and y = -1 | 22(a)22(b) | | Stars: 4/9 x 3/8 = 12/72Hearts: 3/9 x 2/8 = 6/7212/72 + 6/72 = 18/721440 x 12/72 x 1.50 = 3601440 x 6/72 x 2 = 2401440 – 360 - 240 | ¼ 840 | 34 | M1 for 4/9 x 3/8 (= 12/72) or 3/9 x 2/8 (= 6/72)M1 for ‘12/72’ + ‘6/72’A1 for ¼ oe M1 for 1440 x 12/72 or 1440 x 6/72 M1 for 1440 x 12/72 x 1.50 (= 360) or 1440 x 6/72 x 2 (= 240)M1 for 1440 – ‘360’ – ‘240’A1 cao | 23(a)23(b) | | Angle XBD = 60/2 = 30Angle DAC = 90 – 60 = 30AD = √(22 – 12) = √3XD/CD = BD/ADXD/1 = 1/√3 | ProofProof | 23 | B1 for all correct anles of 30, 60 and 90 shownB1 for ‘triangles BXD and ACD have identical corresponding angles, both being 30, 60, 90 degree triangles’ for exampleM1 for AD = √(22 – 12) (= √3)M1 for XD/CD = BD/AD oeA1 for completing the proof | 24 | | (x – 3)(x + 3) (2x + 3)(x – 3) | x + 3 2x + 3 | 3 | M1 for (x – 3)(x + 3) M1 for (2x + 3)(x – 3)A1 cao | 25 | | 2t (√8 - √2) = 64 = 262t (2√2 - √2) = 262t x √2 = 262t x 21/2 = 26t + ½ = 6 | 5½ | 5 | M1 for 2t (√8 - √2) = 64M1 for 2t (2√2 - √2) = 64M1 for 2t x 21/2 = 26M1 for t + ½ = 6A1 cao | 26 | | 3G, 4R 1G, 3Y 3/7 x 1/4 | 3/28 | 3 | M1 for 3/7 or ¼M1 for 3/7 x ¼A1 for 3/28 oe | 27 (i) (ii) (iii) | | | 1001004 | 3 | B1 caoB1 caoB1 cao |

Quest. | Topic/name | AO1 | AO2 | AO3 | Total | | FE | Nu | Man Alg | NonMan alg | G | S | Total#1 | Low | Mid. | High | Total#2 | 1 | Simplify | 2 | | | 2 | | | | 2 | | | | 2 | 2 | | | 2 | 2 | Numbercalcs | 3 | | | 3 | | | 3 | | | | | 3 | 3 | | | 3 | 3 | Height/Wt | 2 | 2 | | 4 | | | | | | | 4 | 4 | 4 | | | 4 | 4 | Light bulbs | 3 | | 3 | | 3 | | | | 3 | | 3 | 3 | | | 3 | 5 | Questionnaire | 2 | | | 2 | | 2 | | | | | 2 | 2 | 2 | | | 2 | 6 | 3D sketch | 4 | | | 4 | | | | | | 4 | | 4 | 4 | | | 4 | 7 | Parallel lines | 2 | 2 | | 4 | | | | | | 4 | | 4 | 4 | | | 4 | 8 | Languages | 4 | | 4 | | | | | | | 4 | 4 | 4 | | | 4 | 9 | Trainers | | | 5 | 5 | | 5 | 5 | | | | | 5 | 5 | | | 5 | 10 | Symmetry | 3 | | | 3 | | | | | | 3 | | 3 | 3 | | | 3 | 11 | Cards | | | 4 | 4 | | | | 4 | | | | 4 | 4 | | | 4 | 12 | Perimeter | | 3 | 3 | | | | 3 | | | | 3 | 3 | | | 3 | 13 | estate agent | | 4 | 4 | | 4 | 4 | | | | | 4 | 4 | | | 4 | 14 | Bearings | 3 | | | 3 | | | | | | 3 | | 3 | 3 | | | 3 | 15 | Fractions | 5 | | | 5 | | | 5 | | | | | 5 | 2 | 3 | | 5 | 16 | Construction | 2 | | | 2 | | | | | | 2 | | 2 | | 2 | | 2 | 17 | Class intervals | 2 | | | 2 | | | | | | | 2 | 2 | 1 | 1 | | 2 | 18 | Midpoint | | 2 | | 2 | | | | | 2 | | | 2 | | 2 | | 2 | 19 | Factorise | 7 | | | 7 | | | | 7 | | | | 7 | 1 | 6 | | 7 | 20 | Sporty students | 4 | | 4 | | | 4 | | | | | 4 | | 4 | | 4 | 21 | Sim Equns | 4 | | | 4 | | | | 4 | | | | 4 | | 4 | | 4 | 22 | Summer Fete | 3 | 4 | 7 | | 7 | 2 | | | | 5 | 7 | | | 7 | 7 | 23 | Sim Triang | 3 | 2 | 5 | | | | | | 5 | | 5 | | | 5 | 5 | 24 | Alg fraction | 3 | | | 3 | | | | 3 | | | | 3 | | | 3 | 3 | 25 | Ind and Surds | 5 | | 5 | | | 2 | 2 | | 1 | | 5 | | | 5 | 5 | 26 | sweets | | 3 | | 3 | | | | | | | 3 | 3 | | | 3 | 3 | 27 | Trig graph | 3 | | | 3 | | | | | 3 | | | 3 | | | 3 | 3 | | Totals | 47 | 31 | 22 | 100 | 0 | 21 | 25 | 25 | 5 | 25 | 20 | 100 | 52 | 22 | 26 | 100 | | Percentage | 47.0 | 31.0 | 22.0 | 100.0 | | 21.0 | | Al: | 30 | | | | 52.0 | 22.0 | 26.0 | | | Foundation % target: | 40-50 | 30-40 | 15-25 | | | 30-40 | | | | | | Target %: | 50 | 25 | 25 | | | Higher % target: | 40-50 | 30-40 | 15-25 | | | 20-30 | | | | | | | | | | |

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