The basic annual cost of a premium subscription to Velocity Stream is £180.00. Subscribers pay this in 12 equal monthly instalments.
The basic cost is adjusted by applying a 4% discount for each consecutive year of subscription.
Construct a general mathematical expression to calculate the monthly cost (in pounds) of a premium subscription.
Use the variable y to represent the number of consecutive years of subscription.
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.