The base annual monitoring fee for an industrial warehouse climate control service is £480.00. Subscribers pay this fee in 24 equal semi-monthly instalments.
The base annual fee is adjusted by applying a 2.5% loyalty discount of this base fee for each consecutive year of service.
Construct a general mathematical expression to calculate the semi-monthly instalment amount (in pounds).
Use the variable ttt to represent the number of consecutive years of service.
159 exam-style questions on Edexcel GCSE Computer Science Algorithms, covering Constructs for solving problems, Variables, constants and data structures, Arithmetic, relational and logical operators, Tracing algorithm output with trace tables, Types of error and correcting logic errors, Standard algorithms (sorts and searches), and Evaluating algorithm fitness and efficiency. Each one has a worked solution and a mark scheme showing where the marks go.