Mathematics

Mastering Mathematics for Edexcel GCSE: Foundation 2/Higher by Gareth Cole;Heather Davis;Sophie Goldie;Linda Liggett;Robin

By Gareth Cole;Heather Davis;Sophie Goldie;Linda Liggett;Robin Liggett;Andrew Manning;Richard Perring;Rob Summerson

Aid scholars to increase their wisdom, abilities and realizing with a view to cause mathematically, speak mathematical info and practice mathematical options in fixing difficulties; with assets constructed in particular for the Edexcel GCSE 2015 specification with major evaluate advisor Keith Pledger and a crew of topic experts. - helps you and your scholars during the new requirements, with subject reasons and new exam-style questions, to aid the recent overview goals. - Builds figuring out and measures development during the path with lots of graduated workouts and labored examples. - Organises themes into development strands, allowing you and your scholars to spot gaps in studying and follow acceptable remediation or extension steps in an effort to make the easiest growth. - presents complete insurance of the GCSE grade variety with 3 books, that means that content material is concentrated on the correct point for every pupil. - deals a continuing 5 12 months development whilst utilized in conjunction with KS3 studying arithmetic.

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Extra info for Mastering Mathematics for Edexcel GCSE: Foundation 2/Higher 1

Example text

The sign ∝ means ‘is proportional to’ and can be used to help create a formula. If a ∝ b then a = kb where k is called the constant of proportionality so k = a ÷ b. Example – Creating a formula In physics, the current (I ) in an electric circuit is directly proportional to the voltage (V ) when the resistance (R ) is constant. 2, V = 10. I a Write a formula connecting I and V. + b Find I when V = 100. 02V – k is the constant of proportionality. indb 35 3/24/15 10:46 PM Strand 6 Ratio and proportion Example – Drawing a conversion graph One day, £6 is worth the same as €9.

Work out the original price of each item. indb 23 3/24/15 10:46 PM Strand 5 Percentages 2 The table shows the cost of some household bills. Each bill includes VAT at 20%. Work out the cost without VAT. 60 c Insurance d Carpet Exam-style Cost with VAT Cost without VAT £210 £1500 3 The contents of a carton of juice have been reduced by 12%. The contents are now 792 ml. What was the original content? Exam-style Exam-style 4 A nurse worked 52 hours this week. This was an increase of 30% compared to last week.

6 a Increase £200 by 15%. b An amount was increased by 15% to give £200. What was the original amount? c Increase your answer to part b by 30%. Is your answer the same as in part a? Explain your answer. Developing fluency 1 The table shows the sale price and the percentage discount for some items. Work out the original price of each item. indb 23 3/24/15 10:46 PM Strand 5 Percentages 2 The table shows the cost of some household bills. Each bill includes VAT at 20%. Work out the cost without VAT.

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