Mathematical literacy Tariff systems grade 10 M Rwangu-rwangu 219004560

Introduction

https://youtu.be/nVE5zj_ilkY

 

Task

Dear grade 10s you are expected to watch this video as it will guide you to complete your upcoming exercise

https://youtu.be/ddczIzr20lM

 

Process

Exercise

  • John bought a cellphone and he is expected to buy his own airtime. His call charges are R2.00 per minute.

1.1 If John wishes to have 3 hours of airtime, how much must he spend on airtime?

1.2 What is the maximum amount of airtime(minutes) John can purchase R90?

  • Mary took a cellphone contract which includes a R200 subscription fee, 50 minutes free ,call charges of 1,20 per minute after the first 50 minutes
Evaluation

I will mark your work and compile a list with marks. Thank you.

Conclusion

Thank you for the co-operation I hope the work was not difficult. Don't worry there is always room for improvement.