Chapter 9 Word Problems
Applications of Inequalities
1. Solve.
Suppose a cellphone service provider offers a choice of two data plans.
Option A gives you unlimited data for $20 a month. Option B has a
monthly fee of $12 and charges you $0.25 per gig. For how many gigs will
Option B be the better deal in any given month?
Option A: Flat fee of 20
Option B: 12 + 0.25x