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As a formula, you would write:. Volume = length x width x height. or, for short: Volume = lwd. The letters are written next to each other to show that you have to multiply them.

arrow_back Back to Substitution into Formulae Substitution into Formulae: Worksheets with Answers. Whether you want a homework, some cover work, or a lovely bit of extra practise, this is the place for you. And best of all they all (well, most!) come with answers. Contents. Mathster; Corbett Maths

GCSE Maths When you cannot factorise a quadratic equation or complete the square, you can use the quadratic formula. The solutions of the quadratic equation ax2 + bx + c = 0 where a ≠ 0 are given by x =-b { 2b2 - 4ac 2a To solve the equation, substitute the values of a, b and c into the formula. 45 The quadratic formula Algebra Equations

The Corbettmaths Practice Questions and Answers to Substitution

GCSE Maths Algebra Peter advertises his business in the local magazine. Peter’s Paws Dog walking service £5 to walk your dog Plus £3 for each hour walked To write this as an algebraic formula, substitute the variables for letters. For example, if the total cost is £T, and the number of hours is n, then the formula Peter can use is:

After studying this section, you will be able to: substitute numbers into formulae; change the subject of a formula; construct formulae; Substituting into formulae

Learn about and revise formulae and how to apply skills in substituting, creating and rearranging formulae with BBC Bitesize GCSE Maths Edexcel guide.

Substitution What is substitution? Substitution means replacing a letter (variable) in a formula with a given number. How do I substitute numbers into a formula? Write down the formula. Replace (substitute) the letters in the formula with the given numbers. If substituting in a negative number, it is important to put brackets around it For example, (-3)

Learn how to expand brackets, collect terms and substitute values into formulae with BBC Bitesize GCSE Maths.

Substitution is the act of replacing a term with another (number or variable) that is equivalent. tutor2u. ... GCSE Maths (9-1) Grade Booster Revision Workshops for May / June 2017 2nd February 2017. Substitution into Formulae Revision Quiz Quizzes & Activities. Substitution into Expressions Revision Quiz ...

Maths revision video and notes on the topic of Rearranging or Changing the Subject of Formulas. GCSE Revision. GCSE Papers . Edexcel Exam Papers OCR Exam Papers AQA Exam Papers Eduqas Exam Papers. ... Maths Genie Limited is a company registered in England and Wales with company number 14341280. Registered Office: 86-90 Paul Street, London ...

Angles, Decimals, formula, Functional Maths, Level 2, Money, ... Substitution in maths means swopping the letters for the right numbers so you can work out the value of an expression. Don’t forget that ab means a multiplied by b and c/d means c divided by d. ... BBC Bitesize Maths revision aimed at 14 year olds but very useful for basic maths;

Substitution is a complete and fully differentiated lesson ideal for GCSE revision or full class teaching. This resource is suitable for all major UK exam boards and is designed to support students from a range of abilities with scaffolded support and challenge. Unit: Equations, Formulae and Identities

GCSE; Formulae - WJEC Substitution. Formulae are used in everyday life to calculate quantities such as wages or costs. These costs will vary depending on factors such as number of hours worked or ...

Substitution Substituting in variables. When substituting variables it is key to remember BIDMAS/ BODMAS and also what the relationship between the variables means. The letter stands for a variable and when we are given the value of that variable we can put it into a formula or equation to work out a specific value. (Like ‘subs’ in a sports ...

Formulae are used in many areas of maths and science, eg for finding the area of a shape or for calculating speed. ... Substitution means putting numbers in place of letters to calculate the value ...

Algebraic Substitution: GCSE Revision with Examples. One of the first steps of algebra is understanding that ‘letters’, known in maths as variables or unknowns, can be used to represent unknown numbers, or values. ... Substitution is important when using formulae to find real-life values to questions involving area, length, speed, and ...

Taken from the OCR Higher and Foundation planning documents, containing specification descriptions. Also included, where available, are the excellent OCR Check-in Tests. For more information please see OCR GCSE Maths page. 5. Formulae (F) 46. Formulae (H) Check-in Test 6.02 - algebraic-formulae

Substitution means putting a number into a formula or expression in place of a letter. Example 1: Find the value of 4a + b when a = 5 and b = 3. ... Maths Genie Limited is a company registered in England and Wales with company number 14341280. Registered Office: 86-90 Paul Street, London, England, EC2A 4NE.