S4_Foundation_Proportion_MIA

Com now try ex 31 ch 2 page 22 monday february 13

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Unformatted text preview: t is my daily rate of pay. 1 4. of 210 7 Monday, February 13, 2012 Created by Mr. Lafferty @www.mathsrevision.com 13 Using the Rate S4 Learning Intention Success Criteria 1. To be able to find the term rate from information given. www.mathsrevision.com 1. To explain how to use the rate to solve problems. Monday, February 13, 2012 Created by Mr. Lafferty @www.mathsrevision.com 14 Using the Rate Example : A pipeline delivers 15 litres of water in 5 secs. www.mathsrevision.com (a) (b) Answer : (a) Calculate the rate of flow per second. How many litres will the pipeline deliver in 8 secs 5 secs 1 secs 15 litres 15 5 = 3 litres 8 x 3 = 24 litres 15 3 litres Answer : (b) Monday, February 13, 2012 1 secs 8 secs Created by Mr. Lafferty @www.mathsrevision.com Using the Rate Example : A pupil can type 20 words in 10 seconds. www.mathsrevision.com (a) (b) Answer : (a) Calculate how many words typed per second. How many words typed in 14 seconds. 10 secs 1 secs 20 words 20 10 = 2 words 14 x 2 = 28 words 16 2 words Answer : (b) Monday, February 13, 2012 1 secs 14 secs Created by Mr. Lafferty @www.mathsrevision.com Using the Rate Example : To hire a car for 5 days costs 200. www.mathsrevision.com (a) (b) Answer : (a) Calculate the cost to hire for 1 day. Calculate the cost for 8 days. 5 days 1 day 200 200 5 = 40 40 x 8 = 320 17 40 Answer : (b) Monday, February 13, 2012 1 day 8 days Created by Mr. Lafferty @www.mathsrevision.com Using the Rate www.mathsrevision.com Now try Ex 4.1 Ch 2 (page 23) Monday, February 13, 2012 Created by Mr. Lafferty @www.maths...
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This note was uploaded on 02/13/2012 for the course MATH 115 115 taught by Professor Jones during the Spring '10 term at University of Phoenix.

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