Formulae: Unit 11 0.0 / 5 ? MathematicsMultiplicative reasoningGCSEEdexcel Created by: annanolanCreated on: 03-10-16 19:18 Compound interest amount = initial amount x (100 + interest rate ÷ 100)^n 1 of 12 What is the formula for speed? speed = distance ÷ time 2 of 12 What does 'a' mean in kinematics formula? a = constant acceleration (e.g m/s^2) 3 of 12 What does 'u' mean in kinematics formula? u = initial velocity 4 of 12 What does 'v' mean in kinematics formula? v = final velocity (e.g. m/s) 5 of 12 What does 's' mean in kinematics formula? s = distance 6 of 12 What does 't' mean in kinematics formula? t = time 7 of 12 What is the formula for density? density = mass ÷ volume (in g/cm^3) 8 of 12 What is the formula for pressure? pressure = force ÷ area 9 of 12 What is the formula for direct proportion? k = y/x or y=kx 10 of 12 What is inverse proportion? as one doubles, the other halves etc., y is proportional to 1/x 11 of 12 What is the formula for inverse proportion? k = xy or y=k/x 12 of 12

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