Formulas Ten quick questions. b: 50d: 2a: 15c: 105 The speed of a falling object is found by the formula: v = 10t If t = 5, find v 1.

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Presentation transcript:

Formulas Ten quick questions

b: 50d: 2a: 15c: 105 The speed of a falling object is found by the formula: v = 10t If t = 5, find v 1

b: 120 minsd: 70 minsa: 150 minsc: 110 mins Use this rule to work out the number of minutes to cook a turkey that weighs 3 kg: Multiply the weight by 40 and add 30. 2

b: £3.20d: £32a: 32pc: £4.80 Use this rule to work out the cost of a taxi journey; Cost = cost per kilometre × number of kilometres The cost per km is 40p, and the journey is 8km. 3

b: 15d: 58a: 13c: 18 The speed of a falling object is found by the formula: v = u + 10t If u = 8 and t = 5, find v 4

b: -4d: -12a: 4c: 7 P = x 2 – 5x Find the value of P when x = 4 5

b: -6d: 24a: 1c: 6 P = x 2 – 5x Find the value of P when x = -3 6

b: 25d: 150a: 15c: 87 T = 3a + 5b a = 5 and b = 2 Work out the value of T 7

b: 6 km/hrd: 6.6 km/hra: 60 km/hrc: 7 km/hr A cyclist travels a distance of 20 km in 3 hours. Which of the following gives the average speed to the nearest whole number? 8

b: £41d: £20a: £52c: £32 Andy makes dresses, and is paid using the formula: P = 4n + 32, where P is his pay in pounds, and n is the number of dresses he makes. Andy makes 5 dresses. What is his pay? 9

b: 30d: 1000a: 10c: 40 p = 2 Work out the value of: 5p 3 10

Answers

b: 50d: 2a: 15c: 105 The speed of a falling object is found by the formula: v = 10t If t = 5, find v 1

b: 120 minsd: 70 minsa: 150 minsc: 110 mins Use this rule to work out the number of minutes to cook a turkey that weighs 3 kg: Multiply the weight by 40 and add 30. 2

b: £3.20d: £32a: 32pc: £4.80 Use this rule to work out the cost of a taxi journey; Cost = cost per kilometre × number of kilometres The cost per km is 40p, and the journey is 8km. 3

b: 15d: 58a: 13c: 18 The speed of a falling object is found by the formula: v = u + 10t If u = 8 and t = 5, find v 4

b: -4d: -12a: 4c: 7 P = x 2 – 5x Find the value of P when x = 4 5

b: -6d: 24a: 1c: 6 P = x 2 – 5x Find the value of P when x = -3 6

b: 25d: 150a: 15c: 87 T = 3a + 5b a = 5 and b = 2 Work out the value of T 7

b: 6 km/hrd: 6.6 km/hra: 60 km/hrc: 7 km/hr A cyclist travels a distance of 20 km in 3 hours. Which of the following gives the average speed to the nearest whole number? 8

b: £41d: £20a: £52c: £32 Andy makes dresses, and is paid using the formula: P = 4n + 32, where P is his pay in pounds, and n is the number of dresses he makes. Andy makes 5 dresses. What is his pay? 9

b: 30d: 1000a: 10c: 40 p = 2 Work out the value of: 5p 3 10