## Deriving Formulae for mobile phone contracts

Learners given two options of mobile phone contracts. They derive formulae and substitute. Then they rearange the formula to work out how many text they can send if they make a numbe of calls on a budget.

**Categories**

- Downloads
- 964
- Views
- 2363
- Created
- Nov 28, 2012
- Updated
- Feb 6, 2013
- Licence
- TES-V1

#### This resource is designed for UK teachers.

View US version#### 32 KB1 File

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