7. A wireless carrier offers the following plans. The Family Plan: $90 monthly fee, unlimited talk and text on up to 8 lines, and data charges of $40 per line for up to 2 GB of data per device. • The Mobile Share Plan: $120 monthly fee, unlimited talk and text on up to 10 lines, and data charges of $35 per line for up to 10 GB of shared data. (a) (b) (c) Construct a model for the total cost of the Family Plan. Define any variables used, and include any restrictions on those variables. Construct a model for the total cost of the Mobile Share Plan. Define any variables used, and include any restrictions on those variables. If a family has 3 smart phones, which plan should they choose? Explain your reasoning.

7. A wireless carrier offers the following plans. The Family Plan: $90 monthly fee, unlimited talk and text on up to 8 lines, and data charges of $40 per line for up to 2 GB of data per device. • The Mobile Share Plan: $120 monthly fee, unlimited talk and text on up to 10 lines, and data charges of $35 per line for up to 10 GB of shared data. (a) (b) (c) Construct a model for the total cost of the Family Plan. Define any variables used, and include any restrictions on those variables. Construct a model for the total cost of the Mobile Share Plan. Define any variables used, and include any restrictions on those variables. If a family has 3 smart phones, which plan should they choose? Explain your reasoning.

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter2: Systems Of Linear Equations

Section2.4: Applications

Problem 28EQ

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