Laurence Jackson School
95250-220345NAME:MARK:00NAME:MARK:NO CALCULATORS ANSWERS1) Expand the following:(x +3)(2x – 5)9) Give the prime factors of 108. Give your answer in index form.2) Increase 320 by 15%3) Simplify2x3+3y44) Factorise and solve the following: n2 – 3n – 18 = 05) Evaluate113-3510) Estimate the area of the following shape. Is your answer and overestimate or underestimate?6) Divide ?240 in the ratio3 :5 :127) Make x the subject of the following: k = 2(3x - 5)8) Find the surface area and volume of:CALCULATORS ANSWERS11) Simplifya) 84 x 85b) 3x x 4x5c) 15y6z3 ÷ 5y2z19) 12) Find the gradient of the line that passes through the points(1, 3) and (5, 11)13) Solve the following:a) 3x – 1 = 13b) 2(2x – 3) = 7c) x – 4 = 3x + 914) Convert 15 cm3 into mm315) Robin is making a drink from orange juice and lemon juice in the ratio 9 : 1. He only has 3.6 litres of orange juice how much of the drink can he make in total?20) Estimate the mean for this data and draw a frequency polygon to represent it.The table shows the range of heights of the girls in Year 11 at a London SchoolHeightFrequency120 < h ≤ 13015130 < h ≤ 14037140 < h ≤ 15025150 < h ≤ 16013160 < h ≤ 180516) Find the volume of the pyramid17) Solve the simultaneous equations: 2x + 3y = 10 x - y = 518) A girl skates at an average speed of 7.5 mph. How far does she skate in 75 minutes? ................
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